Cohen, W. A. (1985). How to make it big as a consultant. Amacom.
Lua i Stíl Chicago (17ú heag.)Cohen, William A. How to Make It Big as a Consultant. New York: Amacom, 1985.
Lua MLA (9ú heag.)Cohen, William A. How to Make It Big as a Consultant. Amacom, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.