APA ציטוט

American National Standards Institute. (1993). Standard for AWS Certified Welders. American: American Welding Society.

Trích dẫn kiểu Chicago

American National Standards Institute. Standard for AWS Certified Welders. American: American Welding Society, 1993.

ציטוט MLA

American National Standards Institute. Standard for AWS Certified Welders. American: American Welding Society, 1993.