Não informado. (1954). The American Journal of Gastroenterology. American College of Gastroenterology.
Cita Chicago Style (17a ed.)Não informado. The American Journal of Gastroenterology. New York: American College of Gastroenterology, 1954.
Cita MLA (8a ed.)Não informado. The American Journal of Gastroenterology. American College of Gastroenterology, 1954.
Precaución: Estas citas no son 100% exactas.