TY  - BOOK
AU  - Prasad, Braj Nandan
TI  - Algal indicators of water pollution
SN  - 812110128x
U1  - 577.627 PRA 
PY  - 1996///
CY  - Dehra Dun
PB  - Bishen Singh Mahendra Pal Singh
KW  - Water pollution
ER  -