(1973). Gastrointestinal tract disease syllabus.
Cita Chicago (17th ed.)Gastrointestinal Tract Disease Syllabus. 1973.
Cita MLA (9th ed.)Gastrointestinal Tract Disease Syllabus. 1973.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)