| GMD | Text![]() |
| Classification | 612.8 NAT |
| Publisher | Washington, D.C., National Geographic Society, c1982. |
| Subject | Human body -- Juvenile literature.Human body.Questions and answers. |
| Description | 103, [1] p. : ill. ; 28 cm. |
| ISBN | 0870444239 |
| Additional ISBN | 087044428X |