  1991 - The Truth About Unicorns (Hardcover) → Paperback ISBN-13: 9780060224783 ISBN-10: 0060224789 Genres: Children's Books, Nonfiction ?  1991 - The Truth About Unicorns (Other) → Paperback, Hardcover ISBN-13: 9780060224790 ISBN-10: 0060224797 Genre: Children's Books ?  1990 - Prehistoric People (Hardcover) → Hardcover ISBN-13: 9780385249225 ISBN-10: 0385249225 Genres: Children's Books, History ? |
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