TY  - BOOK
AU  - Balbir Singh
TI  - Demand for tractors in Punjab
U1  - T 338.160.954.5 B16D 
PY  - 1979///
CY  - Ludhiana
PB  - P.A.U.
KW  - FARM MECHANIZATION -- PUNJAB
KW  - TRACTORS
ER  -