Howe, H. M. (1890). Metallurgy of steel ([v.1].). Scientific Pub. Co.
Lua i Stíl Chicago (17ú heag.)Howe, Henry Marion. Metallurgy of Steel. [v.1]. New York: Scientific Pub. Co, 1890.
Lua MLA (8ú heag.)Howe, Henry Marion. Metallurgy of Steel. [v.1]. Scientific Pub. Co, 1890.
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