Westwood, J. (2011). How to Write a Marketing plan (2nd ed.). Kogan Page.
Lua i Stíl Chicago (17ú heag.)Westwood, John. How to Write a Marketing Plan. 2nd ed. London: Kogan Page, 2011.
Lua MLA (9ú heag.)Westwood, John. How to Write a Marketing Plan. 2nd ed. Kogan Page, 2011.
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