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Item Description: |
"Sponsored by the National Audubon Society, the National Wildlife Federation, and the Roger Tory Peterson Institute." |
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Physical Description: |
x, 656 p. : ill. (some col.), col. maps ; 19 cm. |
Bibliography: |
Includes bibliographical references (p. 623-653) and index. |
ISBN: |
0395389712 (cloth) 0395783216 (pbk.) |