Não informado. (1972). Camborne School of Mines Journal. Camborne School of Mines.
Chicago (17e ed.) BronvermeldingNão informado. Camborne School of Mines Journal. Pool, Inglaterra: Camborne School of Mines, 1972.
MLA (8e ed.) BronvermeldingNão informado. Camborne School of Mines Journal. Camborne School of Mines, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.