TY  - BOOK
AU  - Trivedi, R N  .
AU  - Shatrunjay Kumar,Singh  .
TI  - Water resources and quality management / 
SN  - 81-7169-084-X
U1  - 553.7 
PY  - 1990///
CY  - New Delhi : 
PB  - Commonwealth Publishers , 
ER  -