Gunjal, K. R., & Heady, E. O. (1983). Simulation of farm machinery investments under alternative energy price, support price, and export level policies. Ames: Center for Agricultural and Rural Development. Iowa State University.
Παραπομπή Chicago StyleGunjal, Kisan R., and Earl O. Heady. Simulation of Farm Machinery Investments Under Alternative Energy Price, Support Price, and Export Level Policies. Ames: Center for Agricultural and Rural Development. Iowa State University, 1983.
Παραπομπή MLAGunjal, Kisan R., and Earl O. Heady. Simulation of Farm Machinery Investments Under Alternative Energy Price, Support Price, and Export Level Policies. Ames: Center for Agricultural and Rural Development. Iowa State University, 1983.
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