Saren, M. (2006). Marketing GraffitiMichael Saren. Butterworth-Heinemann.
Lua i Stíl Chicago (17ú heag.)Saren, Michael. Marketing GraffitiMichael Saren. Butterworth-Heinemann, 2006.
Lua MLA (8ú heag.)Saren, Michael. Marketing GraffitiMichael Saren. Butterworth-Heinemann, 2006.
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