TY  - BOOK
AU  - GWINN RPBERT P.
TI  - YEARBOOK OF SCIENCE AND THE FUTURE
SN  - 0852295073
AV  - REF Q 9 .E53 1990 
PY  - 1990///
CY  - CHICAGO
PB  - ENCYCLOPEDIA BRITANNICA
KW  - Science--Periodicals
ER  -