APA način citiranja

Vieira,Walter. (2007). New Sales Manager Challenges for the 21st Century (2.). Response Books.

Čikaški stil citiranja

Vieira,Walter. New Sales Manager Challenges for the 21st Century. 2. New Delhi: Response Books, 2007.

MLA način citiranja

Vieira,Walter. New Sales Manager Challenges for the 21st Century. 2. Response Books, 2007.