TY  - BOOK
AU  - .Singhal,P.K.
AU  - Shrivastava,Pankaj
TI  - Challenges in sustainable development
SN  - 9788126119936
U1  - 338.9 
PY  - 2005///
CY  - New Delhi
PB  - Anmol publications
KW  - Biodiversity
KW  - Sustainable development
N1  - Includes bibliographical reference and index
ER  -