Cohen, A. (1947). Time study and common sense: A critical study of conceptions and methods with suggestions for improvement. Macdonald.
استشهاد بنمط شيكاغوCohen, Abraham. Time Study and Common Sense: A Critical Study of Conceptions and Methods with Suggestions for Improvement. London: Macdonald, 1947.
MLA استشهادCohen, Abraham. Time Study and Common Sense: A Critical Study of Conceptions and Methods with Suggestions for Improvement. Macdonald, 1947.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.