Dyfyniad APA
Kerin, R. A., Hartley, S. W., & Rudelius, W. (2004). Marketing: The core. McGraw-Hill/Irwin.
Dyfyniad Arddull Chicago
Kerin, Roger A., Steven William Hartley, and William Rudelius. Marketing: The Core. Boston, Mass.: McGraw-Hill/Irwin, 2004.
Dyfyniad MLA
Kerin, Roger A., et al. Marketing: The Core. McGraw-Hill/Irwin, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.