Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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