Dyfyniad APA

Kalakota, R., & Whinston, A. B. (2011). Frontiers of electronic commerce. Pearson Education.

Dyfyniad Arddull Chicago

Kalakota, Ravi, and Andrew B. Whinston. Frontiers of Electronic Commerce. New Delhi: Pearson Education, 2011.

Dyfyniad MLA

Kalakota, Ravi, and Andrew B. Whinston. Frontiers of Electronic Commerce. Pearson Education, 2011.

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