APA Style

Mark, F, M., Md, L, S, F. (2021). Sleisenger & Fordtran"s Gastrointestinal &Liver Disease - Volume 2 (11th ed.). Canada: Elsevier.

MLA Style

Mark, Feldman, Md., Md, Lawrence, S,, Friedman. "Sleisenger & Fordtran"s Gastrointestinal &Liver Disease - Volume 2". 11th ed. Canada: Elsevier, 2021. Text.