APA Zitierstil

Barraclough, G. (1970). An introduction to contemporary history. Penguin Books.

Chicago Zitierstil

Barraclough, Geoffrey. An Introduction to Contemporary History. Harmondsworth: Penguin Books, 1970.

MLA Zitierstil

Barraclough, Geoffrey. An Introduction to Contemporary History. Penguin Books, 1970.