Cohen, A. (1947). Time study and common sense: A critical study of conceptions and methods with suggestions for improvement. Macdonald.
শিকাগো স্টাইলে সাইটেশনCohen, Abraham. Time Study and Common Sense: A Critical Study of Conceptions and Methods with Suggestions for Improvement. London: Macdonald, 1947.
এমএলএ সাইটেশনCohen, Abraham. Time Study and Common Sense: A Critical Study of Conceptions and Methods with Suggestions for Improvement. Macdonald, 1947.
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