edited, with an introduction, by Michael L. Wachter and Susan M. Wachter

University of Pennsylvania Press 1981

: pbk

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prepared for the Securities and Exchange Commission by the Wharton School of Finance and Commerce

U.S. Govt. Print. Off. 1962 Union calendar no. 955 , House report 87th Congress, 2d session, no. 2274

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tabulated by the Bureau of Labor Statistics, U.S. Department of Labor for the Wharton School of Finance and Commerce, University of Pennsylvania

In-house reproduction [manufacture]

reel 1 , reel 2 , reel 3 , reel 4 , reel 5 , reel 6 , reel 7 マイクロ形態 (マイクロフィルム (リール))

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by Jesse Freidin

University of Pennsylvania Press 1948 Industry-wide collective bargaining series

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