APA
Feldman M., . (2006). Gastrointestinal and Liver Disease. Philadelphia: Saunders.
Chicago
Feldman Mark, . 2006. Gastrointestinal and Liver Disease. Philadelphia: Saunders.
Harvard
Feldman M., . (2006). Gastrointestinal and Liver Disease. Philadelphia: Saunders.
MLA
Feldman Mark, . Gastrointestinal and Liver Disease. Philadelphia: Saunders. 2006.