APA (7e ed.) Bronvermelding

Não informado. (1987). International Journal of Surface Mining, Reclamation and Environment. Balkema.

Chicago (17e ed.) Bronvermelding

Não informado. International Journal of Surface Mining, Reclamation and Environment. Rotterdam, Holanda: Balkema, 1987.

MLA (8e ed.) Bronvermelding

Não informado. International Journal of Surface Mining, Reclamation and Environment. Balkema, 1987.

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