APA (7th ed.) Citation

Keiningham, T., Aksoy, L., & Williams, L. (2009). Why loyalty matters. Benbella Books, Inc..

Chicago Style (17th ed.) Citation

Keiningham, Timothy, Lerzan Aksoy, and Luke Williams. Why Loyalty Matters. Texas: Benbella Books, Inc., 2009.

MLA (9th ed.) Citation

Keiningham, Timothy, et al. Why Loyalty Matters. Benbella Books, Inc., 2009.