APA (7. basım) Alıntı

Reichheld, F. (2006). The Ultimate Question. HBR Press.

Chicago Style (17. basım) Atıf

Reichheld, Fred. The Ultimate Question. Boston: HBR Press, 2006.

MLA (9th ed.) Atıf

Reichheld, Fred. The Ultimate Question. HBR Press, 2006.