1986 - Nutty Knock Knocks (Paperback) → Paperback ISBN-13: 9780806963044 ISBN-10: 0806963042 Genre: Children's Books 9 1985 - The Zaniest Riddle Book in the World (Paperback) → Paperback, Hardcover ISBN-13: 9780806962528 ISBN-10: 0806962526 Genres: Children's Books, Humor & Entertainment 7 |