TY  - BOOK
AU  - Rao, P. Narasimha 
TI  - Eonomics efficiency and farm machanisation
SN  - 8186771255
U1  - 631.2 22
PY  - 2003///
CY  - New delhi
PB  - Serials publications
KW  - Engineering
N1  - Includes bibliography
ER  -