TY  - BOOK
AU  - Biswas, Asit K. ed.
TI  - Models for water quality management
SN  - 0070054819
U1  - 556.18(086.5) N81 
PY  - 1981///
CY  - New York
PB  - McGraw-Hill International book comapny
KW  - Water quality
ER  -