TY  - BOOK
TI  - Why in the world?
SN  - 0-87044-537-1
U1  - Ref. 500 W629 1985 
PY  - 1985///
CY  - Washington, D.C.
PB  - National Geographic Society
KW  - Science
KW  - Technology
N1  - Includes index
ER  -