Não informado. (1949). Metals transactions. American Institute of Mining and Metallurgical Engineers.
Chicago (17e ed.) BronvermeldingNão informado. Metals Transactions. New York: American Institute of Mining and Metallurgical Engineers, 1949.
MLA (8e ed.) BronvermeldingNão informado. Metals Transactions. American Institute of Mining and Metallurgical Engineers, 1949.
Let op: Deze citaties zijn niet altijd 100% accuraat.