Gaya APA

LAFLEY, A., MARTIN, R, L. (2013). Playing to Win : How Strategy Really Works (1st ed). Boston: HARVARD BUSINESS REVIEW PRESS.

Gaya MLA

LAFLEY, A.G.., MARTIN, ROGER, L.. "Playing to Win : How Strategy Really Works". 1st ed Boston: HARVARD BUSINESS REVIEW PRESS, 2013. MP.