 NightWatch: A Practical Guide to Viewing the Universe Manufacturer: Firefly Books
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 A Field Guide to Edible Wild Plants: Eastern and central North America (Peterson Field Guides (R)) Manufacturer: Houghton Mifflin
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 A Field Guide to the Birds of Eastern and Central North America Manufacturer: Houghton Mifflin
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 Sky & Telescope's Pocket Sky Atlas Author: Roger W. Sinnott Manufacturer: Sky Publishing
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 The Night Sky 30°-40° (Large; North Latitude) Author: David S. Chandler Manufacturer: David Chandler Co.
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 The Stars: A New Way to See Them Author: H. A. Rey Manufacturer: Houghton Mifflin
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 A Field Guide to Reptiles & Amphibians of Eastern & Central North America (Peterson Field Guide Series) Author: Roger Conant Manufacturer: Houghton Mifflin
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 National Audubon Society Field Guide to the Night Sky (Audubon Society Field Guide Series) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf
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 A Field Guide to Insects Manufacturer: Houghton Mifflin
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 A Field Guide to Eastern Trees (Peterson Field Guides) Author: George A. Petrides Manufacturer: Houghton Mifflin
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 Peterson Field Guide to Animal Tracks: Third Edition (Peterson Field Guides (R)) Author: Olaus J. Murie Manufacturer: Houghton Mifflin
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 A Field Guide to Venomous Animals and Poisonous Plants: North America North of Mexico (Peterson Field Guides (R)) Author: Roger Caras Manufacturer: Houghton Mifflin
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 Peterson First Guide to Rocks and Minerals Author: Frederick H. Pough Manufacturer: Houghton Mifflin
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 A Field Guide to Rocks and Minerals (Peterson Field Guides(R)) Author: Frederick H. Pough Manufacturer: Houghton Mifflin
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 A Field Guide to Animal Tracks (Peterson Field Guides(R)) Author: Olaus J. Murie Manufacturer: Houghton Mifflin
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 Peterson First Guide to Clouds and Weather Author: John A. Day Manufacturer: Houghton Mifflin
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 Peterson First Guide to Astronomy (Peterson First Guides (R)) Author: Jay M. Pasachoff Manufacturer: Houghton Mifflin
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 A Field Guide to Eastern Forests: North America (Peterson Field Guides (R)) Manufacturer: Houghton Mifflin
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 A Field Guide to Trees and Shrubs: Northeastern and north-central United States and southeastern and south-centralCanada (Peterson Field Guides (R)) Manufacturer: Houghton Mifflin
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 The Cosmos: Astronomy in the New Millennium (with AceAstronomy?, Virtual Astronomy Labs Printed Access Card) Author: Jay M. Pasachoff Manufacturer: Brooks Cole
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 A Field Guide to Freshwater Fishes : North America North of Mexico (Peterson Field Guides) Author: Brooks M. Burr Manufacturer: Houghton Mifflin
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 NightWatch: A Practical Guide to Viewing the Universe Manufacturer: Firefly Books Top 20 - Astronomy
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 A Field Guide to Eastern Butterflies (Peterson Field Guides (R)) Author: Paul A. Opler Manufacturer: Houghton Mifflin
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 A Field Guide to the Atmosphere (Peterson Field Guides (R)) Author: John A. Day Manufacturer: Houghton Mifflin
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 Astronomy: The Solar System and Beyond (with AceAstronomy and InfoTrac) Author: Michael A. Seeds Manufacturer: Brooks Cole
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 A Field Guide to Mammals: North America north of Mexico (Peterson Field Guides(R)) Author: William H. Burt Manufacturer: Houghton Mifflin
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 Astronomy: The Solar System and Beyond (with CengageNOW, Virtual Astronomy Labs Printed Access Card) Author: Michael A. Seeds Manufacturer: Brooks Cole
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 Discover the Stars Author: Richard Berry Manufacturer: Three Rivers Press
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 Stars and Planets (Princeton Field Guides) Author: Ian Ridpath Manufacturer: Princeton University Press
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 The Ever-Changing Sky: A Guide to the Celestial Sphere Author: James B. Kaler Manufacturer: Cambridge University Press
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 Peterson First Guide to Solar System (Peterson First Guides (R)) Author: Jay M. Pasachoff Manufacturer: Houghton Mifflin
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The Ever-Changing Sky: A Guide to the Celestial Sphere Author: James B. Kaler Manufacturer: Cambridge University Press
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