 National Audubon Society Field Guide to North American Birds--E: Eastern Region - Revised Edition Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Field Guide to North American Insects and Spiders (National Audubon Society Field Guides) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $15.64
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 National Audubon Society Field Guide to North American Mammals: (Revised and Expanded) (National Audubon Society Field Guides) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Field Guide to North American Trees--E: Eastern Region (Eastern) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $19.55
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 National Audubon Society Field Guide to North American Wildflowers--E: Eastern Region - Revised Edition (National Audubon Society Field Guide) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Field Guide to Florida Author: Peter Alden Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Field Guide to the Southwestern States: Arizona, New Mexico, Nevada, Utah (Audubon Field Guide) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 A Field Guide to Eastern Forests: North America (Peterson Field Guides (R)) Manufacturer: Houghton Mifflin ListPrice: $20.00 Offer: $13.60
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 National Audubon Society Field Guide to California Author: Peter Alden Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Regional Guide to the Rocky Mountain States (National Audubon Society Field Guide to the Rocky Mountain States) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $14.96
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 National Audubon Society Regional Guide to New England (National Audubon Society Field Guide to New England) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Regional Guide to the Pacific Northwest (National Audubon Society Field Guide to the Pacific Northwest) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 National Audubon Society Regional Guide to the Southeastern States: Alabama, Arkansas, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South ... Field Guide to the Southeastern States) Author: NATIONAL AUDUBON SOCIETY Manufacturer: Knopf ListPrice: $19.95 Offer: $13.57
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 Designing Field Studies for Biodiversity Conservation Author: Peter Feinsinger Manufacturer: Island Press ListPrice: $32.50 Offer: $26.00
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 The Appalachian Trail Reader (Official Guides to the Appalachian Trail) Manufacturer: Oxford University Press, USA ListPrice: $24.95 Offer: $24.95
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 Audubon Guide to the National Wildlife Refuges: Mid-Atlantic: Delaware, Maryland, New Jersey, New York, Pennsylvania, Virginia, West Virginia (Audubon Guides to the National Wildlife Refuges) Author: Edward R. Ricciuti Manufacturer: St. Martin's Griffin ListPrice: $19.95
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