APA Edition Citation

Barraclough, G. (1967). An introduction to contemporary history. Penguin Books.

Chicago Edition Citation

Barraclough, Geoffrey. An Introduction to Contemporary History. London: Penguin Books, 1967.

MLA Edition Citation

Barraclough, Geoffrey. An Introduction to Contemporary History. Penguin Books, 1967.

Warning: These citations may not always be 100% accurate.