Deismireacht APA

Vaynerchuk, G. (2011). The thank you economy. New York: Harper Business.

Παραπομπή Chicago Style

Vaynerchuk, Gary. The Thank You Economy. New York: Harper Business, 2011.

Deismireacht MLA

Vaynerchuk, Gary. The Thank You Economy. New York: Harper Business, 2011.

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