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Grain and rail in Western Canada ; 1
Hall, Emmett M., (1977)
Grain and rail in Western Canada ; 3
Effects of railroad abandonment on grain producers and grain elevator supply areas in North Central Kansas
Mennem, Gary Max, (1974)
Transportation models for agricultural products
Koo, Wŏn-hoe, (1985)
Effects of government programs on corn, soybeans, and wheat production in the US
Koo, Wŏn-hoe, (1984)
Analysis of demand and supply of rice in Indonesia