TY  - BOOK
AU  - Singh, B P  .
AU  - Srivastava,K M  .
AU  - Vaerma,H N  .
TI  - Recent researches in ecology, environment and polution, Part 2 / 
SN  - 8170193230
U1  - 028.74 628 
PY  - 1988///
CY  -  : 
PB  - Today and Tomorrows Printers and publishers , 
N1  - ** Reference
ER  -