TY  - BOOK
AU  - Vijay Kashyap L.
AU  -  K. Shivappa shetty  Department of Agricultural Microbiology
TI  - Effect of chemical and physical mutagens on the biology and nitrogen fixation
U1  - 630 
PY  - 1993///
CY  - Bangalore
PB  - University of Agricultural Scineces, Bangalore
ER  -