Heppenstall Company. Metallurgical Dept. (1948). Effects of alloying elements and the tensile and hardness properties of carbon and alloy steel (Rev. ed.). s.n.
Chicago Style aipamenaHeppenstall Company. Metallurgical Dept. Effects of Alloying Elements and the Tensile and Hardness Properties of Carbon and Alloy Steel. Rev. ed. Pittsburgh: s.n, 1948.
MLA aipamenaHeppenstall Company. Metallurgical Dept. Effects of Alloying Elements and the Tensile and Hardness Properties of Carbon and Alloy Steel. Rev. ed. s.n, 1948.
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