Dyfyniad APA

Kerin, R. A., & Roger A. Kerin; Steven W. Hartley; William Rudelius. Marketing: The core. New York, NY: McGraw-Hill/Irwin.

Dyfyniad Arddull Chicago

Kerin, Roger A., và Roger A. Kerin; Steven W. Hartley; William Rudelius. Marketing: The Core. New York, NY: McGraw-Hill/Irwin.

Dyfyniad MLA

Kerin, Roger A., và Roger A. Kerin; Steven W. Hartley; William Rudelius. Marketing: The Core. New York, NY: McGraw-Hill/Irwin.

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