↑ F.W. Hilbert, "Employers' Associations in the United States," in Jacob H. Hollander and George E. Barnett (eds.), Studies in American Trade Unionism. New York: Henry Holt and Co., 1912; pg. 195.
↑ Hilbert, "Employers' Associations in the United States," pg. 191.
1 2 Hilbert, "Employers' Associations in the United States," pg. 193.
↑ Hilbert, "Employers' Associations in the United States," pg. 194.
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