TY  - BOOK
AU  - Daniels, R. J. Ranjit
TI  - Environmental studies
T2  - Wiley precise textbook series
SN  - 9788126519439
U1  - 333.7 DAN 
PY  - 2014///
CY  - New Delhi
PB  - John Wiley & Sons
N1  - Includes bibliographical references
ER  -