  1999 - Life Science (Hardcover) → Paperback, Hardcover ISBN-13: 9780028277776 ISBN-10: 0028277775 Genres: Children's Books, Teen & Young Adult ?  1997 - Life Science (Hardcover) → Paperback, Hardcover ISBN-13: 9780028277370 ISBN-10: 0028277376 Genres: Children's Books, Nonfiction, Science & Math ? |
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