APA (7th ed.) Citation

Gallo. (2005). 10 simple secrets of the world's greatest business communicators. Sourcebooks.

Chicago Style (17th ed.) Citation

Gallo. 10 Simple Secrets of the World's Greatest Business Communicators. Naperville: Sourcebooks, 2005.

MLA (8th ed.) Citation

Gallo. 10 Simple Secrets of the World's Greatest Business Communicators. Sourcebooks, 2005.

Warning: These citations may not always be 100% accurate.