TY  - BOOK
AU  - Kotpal,R.L.
TI  - Echinodermata: a text book for college and university students 
U1  -  593.9 
PY  - 1982///
CY  - Meerut
PB  - Rastogi
KW  - Zoology
N1  - Bibliography : p. 213-214
ER  -