Não informado. (2001). Welding engineer: International edition. American Welding Society.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Welding Engineer: International Edition. Chicago, Ill: American Welding Society, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Welding Engineer: International Edition. American Welding Society, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.
