APA (7e ed.) Bronvermelding

Não informado. (1999). International Mining & Minerals. Institution of Mining Engineers.

Chicago (17e ed.) Bronvermelding

Não informado. International Mining & Minerals. Doncaster, Inglaterra: Institution of Mining Engineers, 1999.

MLA (8e ed.) Bronvermelding

Não informado. International Mining & Minerals. Institution of Mining Engineers, 1999.

Let op: Deze citaties zijn niet altijd 100% accuraat.