Gaya APA

Organization, I, S. (0). Heat-Treatble Steels, Alloy Steels and Free-Cutting Steels, Port 1: Direct-Hardening Unalloyed and Low-Alloyes Wrought Steel in from of Different Black Product . USA: ISO.

Gaya MLA

Organization, International, Standard. "Heat-Treatble Steels, Alloy Steels and Free-Cutting Steels, Port 1: Direct-Hardening Unalloyed and Low-Alloyes Wrought Steel in from of Different Black Product". USA: ISO, 0. Book.