  1993 - Dolphin Days the Life and Times of the Spinner Dolphin (Paperback) ISBN-13: 9780380719655 ISBN-10: 0380719657 Genre: Crafts, Hobbies & Home ?  1985 - The Inventor's Guide to Lowcost Patenting (Paperback) → Hardcover ISBN-13: 9780020807704 ISBN-10: 0020807708 Genre: Business & Money ?  Inventor's Guide to Lowcost Patenting (Hardcover) → Paperback ISBN-13: 9780025899506 ISBN-10: 0025899503 ? |
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