Miller, J. J. (1979). Volume of grain and fertilizer requiring transportation: Projections to 1984-1985 and 1989-1990 by countries in Iowa. Ames, Iowa: Center for Agricultural and Rural Development, Iowa State University.
Παραπομπή Chicago StyleMiller, John J. Volume of Grain and Fertilizer Requiring Transportation: Projections to 1984-1985 and 1989-1990 By Countries in Iowa. Ames, Iowa: Center for Agricultural and Rural Development, Iowa State University, 1979.
Παραπομπή MLAMiller, John J. Volume of Grain and Fertilizer Requiring Transportation: Projections to 1984-1985 and 1989-1990 By Countries in Iowa. Ames, Iowa: Center for Agricultural and Rural Development, Iowa State University, 1979.
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