(1963). Economic growth potentials of the Michigan Upper Peninsula. New York: Ebasco Services Incorporated.
Παραπομπή Chicago StyleEconomic Growth Potentials of the Michigan Upper Peninsula. New York: Ebasco Services Incorporated, 1963.
Παραπομπή MLAEconomic Growth Potentials of the Michigan Upper Peninsula. New York: Ebasco Services Incorporated, 1963.
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