MLA

Lacy, Brian E, Michael D Crowell, and John K DiBaise. Functional and Motility Disorders of the Gastrointestinal Tract. Springer New York, 2015.

APA

Lacy, B. E, Crowell, M. D, & DiBaise, J. K. (2015). Functional and Motility Disorders of the Gastrointestinal Tract. Springer New York.

Chicago

Lacy, Brian E., Michael D Crowell, and John K DiBaise. Functional and Motility Disorders of the Gastrointestinal Tract. : Springer New York, 2015.