Schell, E. H., & Gilmore, F. F. (1939). Manual for executives and foremen. McGraw-Hill.
Chicago Style aipamenaSchell, Erwin Haskell, and Frank Forester Gilmore. Manual for Executives and Foremen. New York: McGraw-Hill, 1939.
MLA aipamenaSchell, Erwin Haskell, and Frank Forester Gilmore. Manual for Executives and Foremen. McGraw-Hill, 1939.
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