TY  - BOOK
AU  - Singh J S
AU  -  Gupta S R
AU  -  Singh S P
TI  - Ecology environment and resource conservation
SN  - 8188342556 (pbk)
U1  - G:5, P6;8-;10 
PY  - 2006///
CY  - New Delhi 
PB  - Anamaya Publisher     
KW  - General science
N1  - References 643-678p.; Index 679-688p
ER  -