Não informado. (1973). National Defense. American Defense Preparedness Association.
Chicagoスタイル(17版)引用形式Não informado. National Defense. Washington: American Defense Preparedness Association, 1973.
MLA(8版)引用形式Não informado. National Defense. American Defense Preparedness Association, 1973.
警告: この引用は必ずしも正確ではありません.