TY  - BOOK
AU  - Maureen Mostyn Liebenson 
TI  - THE WORLD BOOK ENCYCLOPEDIA OF SCIENCE VOL I  
U1  - 525 
PY  - 1989///
CY  - Toronto
PB  - World Book Inc
KW  - POST GRADUATE REFERENCE
KW  -  Natural sciences & mathematics
KW  - Astronomy & allied sciences
KW  - Earth (Astronomical geography)English
ER  -