Gaya APA

Sommers, C. (2012). Think like a futurist : theknow what changes what doesn't, and what's next . San Francisco: Jossey-Bass.

Gaya MLA

Sommers, Cecily. "Think like a futurist : theknow what changes what doesn't, and what's next". San Francisco: Jossey-Bass, 2012. Buku/Printed Material.