I wonder why my body needs sleep and other questions about the human body /
Brigid Avison.
- New York : Reader's Digest Young Families, Inc., 1993.
- 32 p. : col. ill. ; 29 cm.
- I wonder why .
Includes index.
Answers questions about the human body such as, "What is my funny bone" "How thick is my skin," and "How do I move."