APA (7th ed.) Citation

Shumard, F. W. (1940). A primer of time study. McGraw-Hill book company,inc.

Chicago Style (17th ed.) Citation

Shumard, Frederick Warren. A Primer of Time Study. New York: McGraw-Hill book company,inc, 1940.

MLA (9th ed.) Citation

Shumard, Frederick Warren. A Primer of Time Study. McGraw-Hill book company,inc, 1940.