. . . "Encyclopædia of oxy-acetylene welding"@en . "Encyclopædia of oxy-acetylene welding" . "Encyclopaedia of oxy-acctylene welding"@en . . . "Encyclopædia of Oxy-Acetylene Welding"@en . . "Encyclopaedia of oxy-acetylene welding" . "Encyclopaedia of oxy-acetylene welding"@en . . . "Encyclopaedia of oxy-acetylene welding. [With illustrations.]"@en . . . . . . "Dictionaries"@en . . . .