Não informado. (1976). International Metals Reviews. Institute of Metals.
Chicago (17e ed.) BronvermeldingNão informado. International Metals Reviews. London: Institute of Metals, 1976.
MLA (8e ed.) BronvermeldingNão informado. International Metals Reviews. Institute of Metals, 1976.
Let op: Deze citaties zijn niet altijd 100% accuraat.