Παραπομπή APA

Cohen, A. (1947). Time study and common sense: A critical study of conceptions and methods with suggestions for improvement. Macdonald.

Παραπομπή Chicago Style

Cohen, Abraham. Time Study and Common Sense: A Critical Study of Conceptions and Methods with Suggestions for Improvement. London: Macdonald, 1947.

Παραπομπή MLA

Cohen, Abraham. Time Study and Common Sense: A Critical Study of Conceptions and Methods with Suggestions for Improvement. Macdonald, 1947.