Dyfyniad APA

Colvin, G. (2010). Talent is Overrated. Portfolio-Penguin Books.

Dyfyniad Arddull Chicago

Colvin, Geoff. Talent Is Overrated. London: Portfolio-Penguin Books, 2010.

Dyfyniad MLA

Colvin, Geoff. Talent Is Overrated. Portfolio-Penguin Books, 2010.

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