Não informado. (1957). Electrical equipment news. Southam Business Publications.
Chicagoスタイル(17版)引用形式Não informado. Electrical Equipment News. Toronto, Canada: Southam Business Publications, 1957.
MLA(8版)引用形式Não informado. Electrical Equipment News. Southam Business Publications, 1957.
警告: この引用は必ずしも正確ではありません.