TY  - BOOK
AU  - Das Gupta, D. K.
AU  - Chattopadhyay, N. C.
TI  - Higher productivity in agriculture: : proceedings of the National Symposium on Approach to Higher Productivity of Crops..
U1  - 633 
PY  - 1980///
CY  - New Delhi
PB  - Oxford & IBH
KW  - Cultivos
KW  - Mejoramiento
KW  - Rendimiento
ER  -