Não informado. Comparative statistics of lead, copper. Metallurgische Gesellschaft.
Chicago (17e ed.) BronvermeldingNão informado. Comparative Statistics of Lead, Copper. Frankfurt, Alemanha: Metallurgische Gesellschaft.
MLA (8e ed.) BronvermeldingNão informado. Comparative Statistics of Lead, Copper. Metallurgische Gesellschaft.
Let op: Deze citaties zijn niet altijd 100% accuraat.