Technological change
By: by David Weintraub and Lewis W. Hine.
Contributors: Hine, Lewis Wickes, 1874-1940.; National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.)
Published: 1937
Place of publication: Philadelphia, Pa
Language: eng
Number of pages: 17
Subjects: Machinery in the workplace.
Notes: On p. [1]:  Works Progress Administration.  National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques.