Coughlan,Anne. (2013). Marketing Channels (7th.). Pearson Education.
Lua i Stíl Chicago (17ú heag.)Coughlan,Anne. Marketing Channels. 7th. Noida: Pearson Education, 2013.
Lua MLA (9ú heag.)Coughlan,Anne. Marketing Channels. 7th. Pearson Education, 2013.
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