Harvey, R. H. (1975). Samuel Gompers, champion of the toiling masses. New York: Octagon Books.
Čikaški stil citiranjaHarvey, Rowland Hill. Samuel Gompers, Champion of the Toiling Masses. New York: Octagon Books, 1975.
MLA način citiranjaHarvey, Rowland Hill. Samuel Gompers, Champion of the Toiling Masses. New York: Octagon Books, 1975.
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