Gaya APA

Hamel, G. (2012). What matters now how to win in a world of relentless change ferocious competition and unstoppable innovation . San Francisco: Jossey-Bass.

Gaya MLA

Hamel, Gary. "What matters now how to win in a world of relentless change ferocious competition and unstoppable innovation". San Francisco: Jossey-Bass, 2012. Text.