Não informado. (1940). Machine shop magazine. Engineering, Chemical & Machine Press.
Chicagoスタイル(17版)引用形式Não informado. Machine Shop Magazine. London: Engineering, Chemical & Machine Press, 1940.
MLA(8版)引用形式Não informado. Machine Shop Magazine. Engineering, Chemical & Machine Press, 1940.
警告: この引用は必ずしも正確ではありません.