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Revised Edition 1979. Circular 16. Rubbed covers. Signed by Peterson [Revision Editor] Anastasi [Associate Editor] and Hines [Illustrator]. A summary of the facts on bird migration. Revisions include recent concepts and techniques. Migrations maps.
Publisher: U.S. Dept. of Interior
Year of Publication: 1979
Page Count: 119
Weight: 0.43 lb
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