Gaya APA

Organization, I, S. (1988). Heat-Treatable Steels, Alloys Steels and Free-Cutting Steels-Port 9: Wrought Free-Cutting Steels . USA: ISO.

Gaya MLA

Organization, International, Standard. "Heat-Treatable Steels, Alloys Steels and Free-Cutting Steels-Port 9: Wrought Free-Cutting Steels". USA: ISO, 1988. Book.