TY  - BOOK
AU  - Verma, P.S.
AU  - Pandey, B.P.
TI  - A text book of biology. for class XII
SN  - 81-219-0834-5
U1  - 574 
PY  - 1980///
CY  - New Delhi
PB  - S.Chand  company
KW  - Biology
ER  -