American National Standards Institute. (1990). Specification for Aluminum amd Aluminum Alloy Electrodes for Shielded Metal Arc Welding. American: American Welding Society.
Dyfyniad Arddull ChicagoAmerican National Standards Institute. Specification for Aluminum Amd Aluminum Alloy Electrodes for Shielded Metal Arc Welding. American: American Welding Society, 1990.
Dyfyniad MLAAmerican National Standards Institute. Specification for Aluminum Amd Aluminum Alloy Electrodes for Shielded Metal Arc Welding. American: American Welding Society, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.