Lincoln Electric Company. (1950). Procedure handbook of arc welding, design and practice (9th ed.). s.n.
Chicago-referens (17:e uppl.)Lincoln Electric Company. Procedure Handbook of Arc Welding, Design and Practice. 9th ed. Cleveland: s.n, 1950.
MLA-referens (9:e uppl.)Lincoln Electric Company. Procedure Handbook of Arc Welding, Design and Practice. 9th ed. s.n, 1950.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.