MLA

Thomas, David R, and Gregory A Compton. Pressure Ulcers In the Aging Population. Humana Press, 2014.

APA

Thomas, D. R, & Compton, G. A. (2014). Pressure Ulcers in the Aging Population. Humana Press.

Chicago

Thomas, David R., and Gregory A Compton. Pressure Ulcers In the Aging Population. : Humana Press, 2014.