Thesis (Ph. D.)--Columbia University, 1923. / "June 1923." At head of title: U.S. Dept. of Labor. James J. Davis, Secretary. Bureau of Labor Statistics. Ethelbert Stewart, Commissioner. Includes bibliographical references.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/575577054 |
Date | January 1923 |
Creators | Albrecht, Arthur Emil, |
Publisher | Washington, D.C. : G.P.O., |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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