Não informado. (1968). Imprint. National Student Nurses Association.
Chicagoスタイル(17版)引用形式Não informado. Imprint. New York: National Student Nurses Association, 1968.
MLA(8版)引用形式Não informado. Imprint. National Student Nurses Association, 1968.
警告: この引用は必ずしも正確ではありません.