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-;5 
PY  - 2006///
CY  - New Delhi 
PB  - Anamaya Publisher     
KW  -  Ecology environment
KW  -  Resource conservation
KW  - Environmental biology
N1  - Bibliographical references 643-678p; Index 679-688p
ER  -