TY  - BOOK
AU  - Ahluwalia,V K.
AU  - Malhotra,Sunita  .
TI  - Environmental science / 
SN  - 9788180522116
U1  - 363.7 
PY  - 2008///
CY  - NewDelhi : 
PB  - Ane books , 
KW  - ENVIRONMENTAL SCIENCE
N1  - Includes bibliographical references and index
ER  -