APA-referens (7:e uppl.)

George, M. D., Donley, T. G., & Preshaw, P. (2014). Ultrasonic periodontal debridement: Theory and technique. Wiley Blackwell.

Chicago-referens (17:e uppl.)

George, Marie D., Timothy G. Donley, och Philip Preshaw. Ultrasonic Periodontal Debridement: Theory and Technique. Ames, Iowa ; West Sussex, England ; Oxford, England: Wiley Blackwell, 2014.

MLA-referens (9:e uppl.)

George, Marie D., et al. Ultrasonic Periodontal Debridement: Theory and Technique. Wiley Blackwell, 2014.