APA

Kalakota R. B. W., .Frontiers of Electronic Commerce. New Delhi: Pearson Education,2009: .

Chicago

Kalakota Ravi/Andrew B Whinston, .Frontiers of Electronic Commerce. New Delhi: Pearson Education,2009: .

Harvard

Kalakota R. B. W., .Frontiers of Electronic Commerce. New Delhi: Pearson Education,2009: .

MLA

Kalakota Ravi/Andrew B Whinston, .New Delhi: Pearson Education,2009: . .