TY  - GEN
TI  - 1992,Sience year: the world book annul science supplement , a review of science and technology during the 1991 school year
SN  - 0716605929
U1  - 050 
PY  - 1991///
CY  - Chicago
PB  - World Book. inc.
KW  - THE WORLD SCIENCE SUPPLEMENT
KW  - SCIENCE
ER  -