TY  - BOOK
AU  - Purohit, S.S.
AU  - Shammi, Q.J. & Agrawal, A,K,
TI  - Environmental science: A new approach
SN  - 9788177542103
U1  - 632.1 P 97 E 
PY  - 2012///
CY  - Jodhpur
PB  - Agrobios
KW  - Environmental
ER  -