1993 - What's the Difference a Guide to Some Familiar Animal Lookalikes (Hardcover) ISBN-13: 9780395561829 ISBN-10: 0395561825 Genre: Children's Books ? 1989 - Complete Frog a Guide for the Very Young Naturalist (Hardcover) ISBN-13: 9780688080174 ISBN-10: 0688080170 Genre: Children's Books ? 1989 - The Complete Frog a Guide for the Very Young Naturalist (Other) → Hardcover ISBN-13: 9780688080181 ISBN-10: 0688080189 Genres: Children's Books, Science & Math ? |