Dulles, F. R. (1949). Labor in America: A history. Crowell.
Chicagoスタイル(17版)引用形式Dulles, Foster Rhea. Labor in America: A History. New York: Crowell, 1949.
MLA(9版)引用形式Dulles, Foster Rhea. Labor in America: A History. Crowell, 1949.
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