APA
(2001). Drug Therapy for Gastrointestinal and Liver Diseases. London: Martin Dunitz.
Chicago
2001. Drug Therapy for Gastrointestinal and Liver Diseases. London: Martin Dunitz.
Harvard
(2001). Drug Therapy for Gastrointestinal and Liver Diseases. London: Martin Dunitz.
MLA
Drug Therapy for Gastrointestinal and Liver Diseases. London: Martin Dunitz. 2001.