TY  - BOOK
AU  - Tyagi,Sanjiv
TI  - From gray to green: new thoughts on environment 
SN  - 9788174467805
U1  - 333.707 22
PY  - 2010///
CY  - New Delhi
PB  - Excel Books
KW  - Environmental sciences
N1  - Includes bibliographical references and index
ER  -