TY  - BOOK
AU  - Gupta, D.K. Das
AU  - Chattopadhyay, N.C
TI  - Higher Productivity in Agricultural
U1  - 631.5 
PY  - 1980///
CY  - New Delhi
PB  - Oxford and IBH, Publishing Co. Pvt. Ltd
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Crop production
ER  -