TY  - BOOK
AU  - Calhoun, David
TI  - 1990 Year Book of Science and the Future
SN  - 0852295073
U1  - 505 
PY  - 1989///
CY  - Chicago, London
PB  - Encyclopedia Britannica, Inc.
KW  - Science and the Future
KW  - Natural Science
ER  -