Fink, G. M. (1974). Biographical dictionary of American labor leaders. Greenwood Press.
Lua i Stíl Chicago (17ú heag.)Fink, Gary M. Biographical Dictionary of American Labor Leaders. Westport, Conn: Greenwood Press, 1974.
Lua MLA (9ú heag.)Fink, Gary M. Biographical Dictionary of American Labor Leaders. Greenwood Press, 1974.
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