APA aipamena

Burg, B., & Mann, J. D. (2007). Go-giver: A little story about a powerful business idea (NA.). Portfolio.

Chicago Style aipamena

Burg, Bob, and John David Mann. Go-giver: A Little Story About a Powerful Business Idea. NA. London: Portfolio, 2007.

MLA aipamena

Burg, Bob, and John David Mann. Go-giver: A Little Story About a Powerful Business Idea. NA. Portfolio, 2007.