The world according to Humphrey /
Betty G. Birney.
- New York : Puffin Books, 2005, c2004.
- 124 p. : ill. ; 20 cm.
Wilson's Children, October 2010 School Library Journal, April 2004 Publisher's Weekly, January 2004 Booklist, March 2004 Horn Book, October 2004 Bulletin (Center for Children's books), April 2004 Kirkus Review, January 2004 Library Media Connection, November 2004
Humphrey, pet hamster at Longfellow School, learns that he has an important role to play in helping his classmates and teacher.