MLA

Achilles Pappano, George Y. Wu, et al. Pocket Handbook of Gi Pharmacotherapeutics. Humana Press, 2009.

APA

Achilles Pappano, G. Y. Wu, George Y. Wu, G. Y. Wu, Pappano, A. J, Wu, G. Y, & Pappano, A. (2009). Pocket Handbook of GI Pharmacotherapeutics. Humana Press.

Chicago

Achilles Pappano, George Y. Wu., George Y. Wu, Achilles J Pappano, George Y Wu, and Achilles Pappano. Pocket Handbook of GI Pharmacotherapeutics. : Humana Press, 2009.