  1999 - Study Guide for Cummings' Human Heredity Principles and Issues (Paperback) ISBN-13: 9780534372286 ISBN-10: 0534372287 Genre: Science & Math ?  1997 - Study Guide for Human Heredity Principles and Issues (Paperback) ISBN-13: 9780314224613 ISBN-10: 0314224610 Genres: Nonfiction, Science & Math ? |
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