TY  - BOOK
AU  - Purohit, S.S.; Shammi, Q.J. & Agrawal, A.K.
TI  - Environmental Sciences : a new approach
SN  - 8177542109
U1  - 620.8 
PY  - 2004///
PB  - Agrobios
KW  - CIVI
KW  - C-13
ER  -