TY  - BOOK
AU  - Renu Kallanpur
AU  - Romesh, Diwan
TI  - Productivity and technical / change in food grains
SN  - 0074515888
U1  - 338.19 
PY  - 1986///
CY  - New Delhi
PB  - Tata Mc Graw -Hill Publishing Company Limited
KW  - Agricultural economics
KW  - Food supply
ER  -