APA aipamena

(2008). Specification for Welding Procedure and Performance Qualification. American: Ametican Welding Society.

Chicago Style aipamena

Specification for Welding Procedure and Performance Qualification. American: Ametican Welding Society, 2008.

MLA aipamena

Specification for Welding Procedure and Performance Qualification. American: Ametican Welding Society, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.