Colvin, G. (2010). Talent is Overrated. Portfolio-Penguin Books.
Chicago-čujuhus (17. p.)Colvin, Geoff. Talent Is Overrated. London: Portfolio-Penguin Books, 2010.
MLA-čujuhus (9. p.)Colvin, Geoff. Talent Is Overrated. Portfolio-Penguin Books, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.