Trends in Employment and Productivity
Published Date
Copyright 1951
ISBN 0870140507
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Copy CitationHarold Barger, The Transportation Industries, 1889-1946: A Study of Output, Employment, and Productivity (NBER, 1951), chap. 3, https://www.nber.org/books-and-chapters/transportation-industries-1889-1946-study-output-employment-and-productivity/trends-employment-and-productivity.