American National Standards Institute, American National Standards Institute, American Welding Society (Estados Unidos), & American Welding Society (Estados Unidos). (1986). Standard symbols for welding, brazing and nondestructive examination: Superseding A 2.4-76, A 2.4-79, A 2.2-69, and A 2.0-68. Miami, Fla.: American Welding Society.
Chicago Style CitationAmerican National Standards Institute, American National Standards Institute, American Welding Society (Estados Unidos), and American Welding Society (Estados Unidos). Standard Symbols for Welding, Brazing and Nondestructive Examination: Superseding A 2.4-76, A 2.4-79, A 2.2-69, and A 2.0-68. Miami, Fla.: American Welding Society, 1986.
MLA CitationAmerican National Standards Institute, American National Standards Institute, American Welding Society (Estados Unidos), and American Welding Society (Estados Unidos). Standard Symbols for Welding, Brazing and Nondestructive Examination: Superseding A 2.4-76, A 2.4-79, A 2.2-69, and A 2.0-68. Miami, Fla.: American Welding Society, 1986.