APA استشهاد

Barnes, R. M. (1968). Motion And Time Study: Design and Measurement of Work (6th ed.). John Wiley.

استشهاد بنمط شيكاغو

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

MLA استشهاد

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