Ferns, Spikemosses, Clubmosses, and Quillworts of Eastern North America
Emily Sessa
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The Princeton Field Guide to Dinosaurs Third Edition
Gregory S. Paul
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Bumble Bees of North America : An Identification Guide
Paul H. Williams
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The Princeton Field Guide to Dinosaurs : Second Edition
Gregory S. Paul
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Caterpillars of Eastern North America : A Guide to Identification and Natural History
David Wagner
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The Princeton Field Guide to Prehistoric Mammals
Donald R. Prothero
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Field Guide to the Fishes of the Amazon, Orinoco, and Guianas
Peter van der Sleen
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Birds of Central America : Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama
Andrew C. Vallely
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Field Guide to the Flower Flies of Northeastern North America
Jeffrey H. Skevington
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