TY  - BOOK
AU  - Kumar,Arvind
TI  - Textbook of environmental science
SN  - 8176485896 (paperback)
PY  - 2004///
CY  - [S.l.]
PB  - APH Publishing Corporation
UR  - http://www.amazon.com/exec/obidos/ASIN/8176485896/chopaconline-20
ER  -