TY  - BOOK
AU  - KOTPAL (R L).
TI  - Zoology phylum-8: echinodermata. Ed.5
SN  - 81 7133 630 2
U1  - 591 KOTZ 
PY  - 2003///
CY  - Meerut
PB  - Rastogi Publications
KW  - Echinodermata
ER  -