McDonald, M. (2005). Marketing plans: How to prepare them: how to use them. Elsevier International.
Lua i Stíl Chicago (17ú heag.)McDonald, Malcolm. Marketing Plans: How to Prepare Them: How to Use Them. Amsterdam: Elsevier International, 2005.
Lua MLA (9ú heag.)McDonald, Malcolm. Marketing Plans: How to Prepare Them: How to Use Them. Elsevier International, 2005.
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