Não informado. (1969). Machine shop and metalworking economics. Engineering, Chemical & Machine Press.
Citace podle Chicago (17th ed.)Não informado. Machine Shop and Metalworking Economics. London: Engineering, Chemical & Machine Press, 1969.
Citace podle MLA (8th ed.)Não informado. Machine Shop and Metalworking Economics. Engineering, Chemical & Machine Press, 1969.
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