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History of the labor movement in the United States
Foner, Philip S., (1947)
Correspondenzblatt der Generalkommission der Gewerkschaften Deutschlands
(1919)
The role of mergers in the growth of large firms
Weston, J. Fred, (1953)
Scientific Management and the unions : 1900 - 1932 ; a historical analysis
Nadworny, Milton Joseph, (1955)
Change and the entrepreneur
(1949)