Dyfyniad APA

Berkowitz, E. N., Hartley, S. W., Kerin, R. A., & Rudelius, W. (1997). Study guide for use with marketing. Chicago: Irwin.

Dyfyniad Arddull Chicago

Berkowitz, Ericc N., Steve W. Hartley, Roger A. Kerin, và William Rudelius. Study Guide for Use With Marketing. Chicago: Irwin, 1997.

Dyfyniad MLA

Berkowitz, Ericc N., Steve W. Hartley, Roger A. Kerin, và William Rudelius. Study Guide for Use With Marketing. Chicago: Irwin, 1997.

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