APA (7e ed.) Bronvermelding

Donaldson, H. (1965). Coal. Published for the Nuffield Foundation by the Longmans/ Penguin Books.

Chicago (17e ed.) Bronvermelding

Donaldson, H. Coal. London: Published for the Nuffield Foundation by the Longmans/ Penguin Books, 1965.

MLA (9e ed.) Bronvermelding

Donaldson, H. Coal. Published for the Nuffield Foundation by the Longmans/ Penguin Books, 1965.

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