TY  - BOOK
ED  - World Book, Inc.
TI  - The world book encyclopedia of science :
SN  - 0716632268 (set)
AV  - Q121 .W65 1990
U1  - 503 20
PY  - 1990///
CY  - Chicago, Ill.
PB  - World Book
KW  - Science
KW  - Dictionaries
KW  - Encyclopedias
N1  - The planet earth
ER  -