Não informado. (1955). Welding research abroad. Welding Research Council, Engineering Foundation.
Chicago (17e ed.) BronvermeldingNão informado. Welding Research Abroad. New York: Welding Research Council, Engineering Foundation, 1955.
MLA (8e ed.) BronvermeldingNão informado. Welding Research Abroad. Welding Research Council, Engineering Foundation, 1955.
Let op: Deze citaties zijn niet altijd 100% accuraat.