ISBN 9781482740998 books & textbook
Pet Set: The World According to Humphrey; Champ; Smart Dog (Book Sets for Kids : Grade 3 - 5)
Dan Gracey Marcia Thorton Jones Betty G. Birney
Scholastic /2009-01-01 Paperback
isbn-10: 1482740990 / isbn-13: 9781482740998