TY  - BOOK
AU  - Chawla, Ashwani Kumar
TI  - Computer programs for cost analysis of farm tractors and major farm machines and determination of costs of operation of major farm machines
U1  - T 338.16 C32C 
PY  - 1991///
CY  - Ludhiana
PB  - P.A.U.
KW  - AGRICULTURAL MACHINERY -- COST OF CIRCULATION
KW  - AGRICULTURAL MACHINERY -- COST OF CIRCULAT
KW  - FARM TRACTORS -- ECONOMIC ASPECTS
ER  -