TY  - BOOK
AU  - A.K. Tripathi ; A.K. Srivastava & S.N. Pandy
TI  - Advancese in environmental sciences
SN  - 8170245281
U1  - 363.73 
PY  - 1993///
CY  - ASHISH
PB  - New Delhi
KW  - Social Science
ER  -