Style de citation APA

Ries, A. (1996). Focus: The future of your company depends on it. New York: HarperBusiness.

Style de citation Chicago

Ries, Al. Focus: The Future of Your Company Depends On It. New York: HarperBusiness, 1996.

Style de citation MLA

Ries, Al. Focus: The Future of Your Company Depends On It. New York: HarperBusiness, 1996.

Attention : ces citations peuvent ne pas être correctes à 100%.