TY  - BOOK
AU  - Kotpal,R.L.
TI  - Porifera: a text book of college and university students 
SN  - 8171333524
U1  - 590 22
PY  - 1998///
CY  - New Delhi
PB  - Rastogi publications
KW  - Zoology
N1  - Includes index
ER  -