The heart and circulatory system /
Carol Ballard.
- Austin, Tex. : Raintree Steck-Vaughn, c1997.
- 48 p. : col. ill. ; 28 cm.
- The human body .
- Human body (Austin, Tex.) .
Includes bibliographical references (p. 47) and index.
Describes the parts of the circulatory system and how they function.