Virtusio, R. P. (2007). How to make it in PR: PR veterans tell their stories. Context Communications International.
Citace podle Chicago (17th ed.)Virtusio, Romeo P. How to Make It in PR: PR Veterans Tell Their Stories. San Juan: Context Communications International, 2007.
Citace podle MLA (9th ed.)Virtusio, Romeo P. How to Make It in PR: PR Veterans Tell Their Stories. Context Communications International, 2007.
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