TY  - BOOK
AU  - Nigam, Harish C. 
TI  - Invertebrate  zoology
U1  - 592 NIG 
PY  - 1976///.
CY  - Delhi : 
PB  - S. Nagin & co.
KW  - Protozoa
KW  - Classification and General
N1  - Index
ER  -