Dyfyniad APA

Kalakota, R. (1999). Frontiers of electronic commerce (2nd.). Addison Wesley.

Dyfyniad Arddull Chicago

Kalakota, Ravi. Frontiers of Electronic Commerce. 2nd. Massachuse tts: Addison Wesley, 1999.

Dyfyniad MLA

Kalakota, Ravi. Frontiers of Electronic Commerce. 2nd. Addison Wesley, 1999.

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