TY  - BOOK
AU  - Santhanam,R.
AU  - Velayutham,P.
TI  - A manual of freshwater ecology: an aspect of fishery environment  
SN  - 8170350549
U1  - 577.6 23
PY  - 1989///
CY  - New Delhi
PB  - India
KW  -  Freshwater ecology.
N1  - Inciudes index
ER  -