Não informado. (1954). The American Journal of Gastroenterology. American College of Gastroenterology.
Chicagoスタイル(17版)引用形式Não informado. The American Journal of Gastroenterology. New York: American College of Gastroenterology, 1954.
MLA(8版)引用形式Não informado. The American Journal of Gastroenterology. American College of Gastroenterology, 1954.
警告: この引用は必ずしも正確ではありません.