Dyfyniad APA

Sutermeister, R. A. (1963). People and productivity. Mc graw hill book company.

Dyfyniad Arddull Chicago

Sutermeister, Robert A. People and Productivity. New York: Mc graw hill book company, 1963.

Dyfyniad MLA

Sutermeister, Robert A. People and Productivity. Mc graw hill book company, 1963.

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