 | What Tree Is That?: A Guide to the More Common Trees Found in North America by Arbor Day Foundation
Buy new: $10.17 / Used from: $14.51 |
 | Nature and Other Writings by Ralph Waldo Emerson
Buy new: $10.52 / Used from: $6.00 |
 | Keeping a Nature Journal: Discover a Whole New Way of Seeing the World Around You by Clare Walker Leslie
Buy new: $12.89 / Used from: $10.45 |
 | Handbook of Nature Study by Anna Botsford Comstock
Buy new: $15.14 / Used from: $11.94 |
 | Bringing Nature Home: How Native Plants Sustain Wildlife in Our Gardens by Douglas W. Tallamy
Buy used from: $4.16 |
 | Last Child in the Woods: Saving Our Children From Nature-Deficit Disorder by Richard Louv
Buy new: $10.17 / Used from: $6.43 |
 | Animal, Vegetable, Miracle: A Year of Food Life (P.S.) by Barbara Kingsolver
Buy new: $10.76 / Used from: $6.70 |
 | The Green Collar Economy: How One Solution Can Fix Our Two Biggest Problems by Van Jones
Buy new: $17.15 / Used from: $2.65 |
 | Silent Spring by Rachel Carson
Buy new: $9.72 / Used from: $4.00 |
 | National Geographic Field Guide to the Birds of North America, Fifth Edition by Jon L. Dunn
Buy new: $16.32 / Used from: $13.75 |
 | The World Without Us by Alan Weisman
Buy new: $10.20 / Used from: $1.99 |
 | Chi Walking: Fitness Walking for Lifelong Health and Energy by Danny Dreyer
Buy new: $11.51 / Used from: $2.14 |
 | Be Expert with Map and Compass: The Complete Orienteering Handbook by Björn Kjellström
Buy new: $12.89 / Used from: $3.60 |
 | National Audubon Society Field Guide to North American Rocks and Minerals (National Audubon Society Field Guides) by NATIONAL AUDUBON SOCIETY
Buy new: $13.57 / Used from: $4.55 |
 | Mammal Tracks & Sign: A Guide to North American Species by Mark Elbroch
Buy new: $30.99 / Used from: $27.00 |
 | Guide to the Stars by David H. Levy
Buy new: $14.36 / Used from: $10.99 |
 | Ocean: An Illustrated Atlas (National Geographic Atlas) by Sylvia A. Earle
Buy new: $40.95 / Used from: $18.95 |
 | Sea Change: A Message of the Oceans by Sylvia Earle
Buy new: $11.16 / Used from: $0.35 |
 | National Audubon Society Field Guide to North American Seashore Creatures (National Audubon Society Field Guides) by Norman A. Meinkoth
Buy new: $14.25 / Used from: $3.93 |
 | The Beak of the Finch: A Story of Evolution in Our Time by Jonathan Weiner
Buy new: $10.88 / Used from: $2.11 |
 | Mountaineering: The Freedom of the Hills by The Mountaineers
Buy new: $19.77 / Used from: $17.44 |
 | Country Wisdom & Know-How by The Editors of Storey Publishing's Country Wisdom Boards
Buy new: $12.97 / Used from: $8.57 |
 | The Botany of Desire: A Plant's-Eye View of the World by Michael Pollan
Buy new: $10.88 / Used from: $5.99 |
 | The Gulf Stream: Tiny Plankton, Giant Bluefin, and the Amazing Story of the Powerful River in the Atlantic (Caravan Book) by Stan Ulanski
Buy new: $18.48 / Used from: $7.77 |
 | Corals: A Quick Reference Guide (Oceanographic Series) by Julian Sprung
Buy used from: $21.99 |
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