TY  - BOOK
ED  - National Geographic Society (U.S.)
TI  - The Incredible machine
SN  - 0870446193
U1  - 612 21
PY  - 1986///
CY  - Washington, D.C
PB  - National Geographic Society
KW  - Human body
KW  - Human physiology
KW  - Popular works
N1  - Includes index; Bibliography: p. 379
ER  -