Não informado. (1982). Bibliography of Economic Geology. Geosystems Publications.
Chicago (17e ed.) BronvermeldingNão informado. Bibliography of Economic Geology. London: Geosystems Publications, 1982.
MLA (8e ed.) BronvermeldingNão informado. Bibliography of Economic Geology. Geosystems Publications, 1982.
Let op: Deze citaties zijn niet altijd 100% accuraat.