Chaffey, D. (2013). Emarketing Excellence (4th.). Routledge.
Chicago-čujuhus (17. p.)Chaffey, Dave. Emarketing Excellence. 4th. New York: Routledge, 2013.
MLA-čujuhus (9. p.)Chaffey, Dave. Emarketing Excellence. 4th. Routledge, 2013.
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