  1995 - The Summer Atlas of North American Birds (Hardcover) ISBN-13: 9780125646604 ISBN-10: 0125646607 Genres: Science & Math, Engineering & Transportation, Outdoors & Nature ?  1993 - Hybrid Zones and the Evolutionary Process (Hardcover) ISBN-13: 9780195069174 ISBN-10: 019506917X Genres: Science & Math, Engineering & Transportation ?  |
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