Dyfyniad APA

Whelan, J., Husnizam Hussain, & Shahrazi Hasan. (2003). E-mel @ kerja: Panduan berguna mengendalikan e-mel anda. Prentice Hall.

Dyfyniad Arddull Chicago

Whelan, Jonathan, Husnizam Hussain, and Shahrazi Hasan. E-mel @ Kerja: Panduan Berguna Mengendalikan E-mel Anda. London: Prentice Hall, 2003.

Dyfyniad MLA

Whelan, Jonathan, et al. E-mel @ Kerja: Panduan Berguna Mengendalikan E-mel Anda. Prentice Hall, 2003.

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