TY  - BOOK
AU  - Singh, J S
AU  - Gupta, S R
AU  - Singh, S P
TI  - Ecology environment and resource conservation
SN  - 8188342556
CY  - New Delhi
KW  - Air and noise pollution
KW  - Ecology
KW  - Ecosystem structure  Processes
KW  - Ecotoxicology
KW  - Environmental science
KW  - Natural resources
KW  - Resource conservation
KW  - Soil pollution
KW  - Water pollution
N1  - Includes bibliographical references and index
ER  -