Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.