Lua APA (7ú heag.)

Chaffey, D. &. S. P. (2013). E-marketing excellence. Routledge.

Lua i Stíl Chicago (17ú heag.)

Chaffey, Dave & Smith PR. E-marketing Excellence. Landon: Routledge, 2013.

Lua MLA (9ú heag.)

Chaffey, Dave & Smith PR. E-marketing Excellence. Routledge, 2013.

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