Mathur, D. P., & Gupta, V. K. (1977). Changing pattern of wheat production and marketing: A resurvey in selected surplus and deficit areas. Centre for Management in Agriculture, Indian Institute of Management.

Mathur, D. P., and V. K. Gupta. Changing Pattern of Wheat Production and Marketing: A Resurvey in Selected Surplus and Deficit Areas. Ahmedabad: Centre for Management in Agriculture, Indian Institute of Management, 1977.

Mathur, D. P., and V. K. Gupta. Changing Pattern of Wheat Production and Marketing: A Resurvey in Selected Surplus and Deficit Areas. Centre for Management in Agriculture, Indian Institute of Management, 1977.