American National Standards Institute. (1993). Standard for AWS Certified Welders. American: American Welding Society.
Chicago Style citaatAmerican National Standards Institute. Standard for AWS Certified Welders. American: American Welding Society, 1993.
MLA citatieAmerican National Standards Institute. Standard for AWS Certified Welders. American: American Welding Society, 1993.
Let op: Deze citaties zijn niet altijd 100% accuraat.