MLA

Lacy, et al. Essential Medical Disorders of the Stomach and Small Intestine. Springer International Publishing, 2019.

APA

Lacy, L., DiBaise, J. K, Ford, A. C, & Pimentel, M. (2019). Essential Medical Disorders of the Stomach and Small Intestine. Springer International Publishing.

Chicago

Lacy, John K DiBaise, Alexander C Ford, and Mark Pimentel. Essential Medical Disorders of the Stomach and Small Intestine. : Springer International Publishing, 2019.