Punjab (India). Economic and Statistical Organisation. (1973). Economics of tractor cultivation and economics of production and cultivation practices of high yielding varieties of wheat, maize (hybrid), and paddy in Punjab: Report. Economic and Statistical Organisation.
Dyfyniad Arddull ChicagoPunjab (India). Economic and Statistical Organisation. Economics of Tractor Cultivation and Economics of Production and Cultivation Practices of High Yielding Varieties of Wheat, Maize (hybrid), and Paddy in Punjab: Report. Chandigarh: Economic and Statistical Organisation, 1973.
Dyfyniad MLAPunjab (India). Economic and Statistical Organisation. Economics of Tractor Cultivation and Economics of Production and Cultivation Practices of High Yielding Varieties of Wheat, Maize (hybrid), and Paddy in Punjab: Report. Economic and Statistical Organisation, 1973.