TY  - BOOK
AU  - Bhupal D S
TI  - Comparative economics of mechanised and non-mechan
T2  - Agricultural Economics Research Centre, Publication; 93/1
U1  - X9(J):4.242.N9, N3 
PY  - 1993///
CY  - Delhi
PB  - A E R C       
KW  - Agricultural Economics
ER  -