TY  - BOOK
AU  - Singh,Diwa kumari
TI  - Technological change and agricultural development / 
SN  - 8171004725
U1  - 338.13 
PY  - 1993///
CY  - New Delhi : 
PB  - Deep and Deep Publications , 
KW  - AGRICULTURE - ECONOMIC ASPECTS
N1  - NULL
ER  -