TY  - BOOK
AU  - Santhanam,R and others
AU  - Velayutham,R and Jegatheesan,G
TI  - Manual of Freshwater Ecology
U1  - 577.6095 
PY  - 1989///
CY  - Delhi
PB  - Daya publishing house
KW  - Ecology
N1  - Water analysis--soil analysis--biological analysis
ER  -