TY  - BOOK
AU  - Biswas, Asit K., ed.
TI  - Models for water quality management
T2  - McGraw hill series in water resources and environmental Engg
SN  - 0070054819
U1  - 333.9100184 
PY  - 1981///
CY  - USA
PB  - McGraw-Hill
ER  -