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List of periodicals containing prices and other statistical & economic information on dairy products
Colvin, Esther M., (1937)
Transportation of agricultural products in the United States 1920 - june 1939 : a sel. list of references relating to the various phases of railway, motor, and water carrier transportation ; United States Department of Agriculture ; Bureau of Agricultural Economics
Colvin, Esther M., (1939)
Transportation of agricultural products in the United Staates 1920 - june 1939 ; 2