APA (7e ed.) Bronvermelding

Barraclough, G. (1955). History in a changing world. University of Oklahoma Press.

Chicago (17e ed.) Bronvermelding

Barraclough, Geoffrey. History in a Changing World. Norman: University of Oklahoma Press, 1955.

MLA (8e ed.) Bronvermelding

Barraclough, Geoffrey. History in a Changing World. University of Oklahoma Press, 1955.

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