Não informado. (1960). Bulletin. American College of Physicians.
Chicagoスタイル(17版)引用形式Não informado. Bulletin. Philadelphia, Pa: American College of Physicians, 1960.
MLA(8版)引用形式Não informado. Bulletin. American College of Physicians, 1960.
警告: この引用は必ずしも正確ではありません.