Não informado. (1957). Hospital literature index. American Hospital Association.
Chicagoスタイル(17版)引用形式Não informado. Hospital Literature Index. Chicago, Ill: American Hospital Association, 1957.
MLA(8版)引用形式Não informado. Hospital Literature Index. American Hospital Association, 1957.
警告: この引用は必ずしも正確ではありません.