APA
Committee on Minimum Requirements of Instructions for Welding Operators in Trade Schools, American Welding Society, . (1942). Code of minimum requirements for instruction of welding operators. New York, N.Y: American Welding Society.
Chicago
Committee on Minimum Requirements of Instructions for Welding Operators in Trade Schools, American Welding Society, . 1942. Code of minimum requirements for instruction of welding operators. New York, N.Y: American Welding Society.
Harvard
Committee on Minimum Requirements of Instructions for Welding Operators in Trade Schools, American Welding Society, . (1942). Code of minimum requirements for instruction of welding operators. New York, N.Y: American Welding Society.
MLA
Committee on Minimum Requirements of Instructions for Welding Operators in Trade Schools, American Welding Society, . Code of minimum requirements for instruction of welding operators. New York, N.Y: American Welding Society. 1942.