Dyfyniad APA

Strauss, J., Adel E1-Ansary, & Raymond Frost. (2004). E-marketing (3rd ed.). Prentice-Hall of India.

Dyfyniad Arddull Chicago

Strauss, Judy, Adel E1-Ansary, and Raymond Frost. E-marketing. 3rd ed. New Delhi: Prentice-Hall of India, 2004.

Dyfyniad MLA

Strauss, Judy, et al. E-marketing. 3rd ed. Prentice-Hall of India, 2004.

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