The digestive system /
Regina Avraham ; introduction by C. Everett Koop.
- New York : Chelsea House Publishers, c1989.
- 99 p. : ill. ; 24 cm.
- The Encyclopedia of health. The healthy body .
- Encyclopedia of health. Healthy body. .
Includes index.
Bibliography: p. 90.
An overview of the digestive system and how it works.