APA استشهاد

Barnes, R. M. (1968). Motion and time study: Design and measurement of work (6th ed.). John Wiley & Sons.

استشهاد بنمط شيكاغو

Barnes, Ralph M. Motion and Time Study: Design and Measurement of Work. 6th ed. New York: John Wiley & Sons, 1968.

MLA استشهاد

Barnes, Ralph M. Motion and Time Study: Design and Measurement of Work. 6th ed. John Wiley & Sons, 1968.