TY  - BOOK
AU  - AGGARWAL (Sarita).
TI  - Text book of biology. P2
SN  - 81 259 0111 6
U1  - 574 AGGT 
PY  - 1995///
CY  - N D
PB  - Vikas publishing house pvt ltd
KW  - N C E R T I IPUC CBSE
ER  -