"200"^^ . . . "The American Machinist is a popular American trade magazine of the international machinery industries and most especially their machining aspects. Published since 1877, it was a McGraw-Hill title for over a century before becoming a Penton title in 1988. In 2013 it transitioned from combined print/online publication to online-only."@en . "American Machinist"@en . . . . "1041-7958" .