TY  - BOOK
AU  - Verma, P. S.
TI  - A manual of practical zoology invertebrates 
SN  - 9788121908290
U1  - 592 VER 
PY  - 1971///
CY  - New Delhi
PB  - S. Chand & Company Private Limited
KW  - Invertebrates
KW  - A manual of practical zoology invertebrates
ER  -