TY  - BOOK
TI  - Encyclopedia of questions and answers
SN  - 9780753718780
AV  - Q 121 .En56 2000
U1  - REF 507  
PY  - 2000///.
CY  - Philippines : 
PB  - WS Pacific Publications, Inc, 
N1  - Basic Ed. Students
N2  - 1. Science--Encyclopedias.  2. Childrens encyclopedias and dictionaries.
ER  -