Tripp, L. R. (1954). Labor-management relations in the Paducah area of western Kentucky. University of Kentucky.
Lua i Stíl Chicago (17ú heag.)Tripp, L. Reed. Labor-management Relations in the Paducah Area of Western Kentucky. Lexington: University of Kentucky, 1954.
Lua MLA (8ú heag.)Tripp, L. Reed. Labor-management Relations in the Paducah Area of Western Kentucky. University of Kentucky, 1954.
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