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Real wages in the United States 1890-1926
Douglas, Paul Howard - 1930
Persistent link: https://www.econbiz.de/10002288681
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Social security in the United States : an analysis and appraisal of the Federal social security act
Douglas, Paul Howard - 1936
Persistent link: https://www.econbiz.de/10001792022
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Real wages in the United States : 1890 - 1926
Douglas, Paul H. - 1966 - [1. publ. 1930. Reprint.]
Persistent link: https://www.econbiz.de/10003418321