TY  - BOOK
AU  - KOTPAL (R L).
TI  - Zoology phylum-9: text book of minor phyla. Ed.11
SN  - 81 7133 597 7
U1  - 591 KOTZ 
PY  - 2003///
CY  - Meerut
PB  - Rastogi Publications
KW  - Minor Phyla
ER  -