TY  - BOOK
TI  - 1992 science year : : the World book annual science supplement : a review of science and technology during the 1991 school year
SN  - 0716605929
U1  - 505 
PY  - 1992///
CY  - Chicago
PB  - World Book
KW  - Science
KW  - History
N1  - index
ER  -