TY  - GEN
AU  - Umesh Narayan
TI  - Environmental studies
SN  - 9788178803746
U1  -  333.707 
PY  - 2008///
CY  - New Delhi
PB  - Rajat  Publications
KW  - Environment
KW  - Environment protection
N1  - Includes bibliographical references and index
ER  -