TY  - BOOK
AU  - Meena
AU  - Shipra
TI  - Treasury of knowledge
SN  - 9788174906169
U1  - 032.02 
PY  - 2005///
CY  - New Delhi
PB  - Dhingra Publishing House, 
KW  - General Knowledge
KW  - Science
N1  - Including bibliographical references and indexes

ER  -