TY  - BOOK
AU  - KOTPAL, R . L .
TI  - PORIFERA / 
U1  - 593.4 
PY  - 1981///
CY  - MEERUT
PB  - RASTOGI PUB.
KW  - PORIFERA
N1  - 19047 - LOST & REPLACED BY A STUDENT - 7TH ED / 24/-
ER  -