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. Buku/Printed Material.