Citazione Stile APA (7a Edizione)

Barraclough, G. (1964). An introduction to contemporary history. C. A. Watts.

Citazione stile Chigago Style (17a edizione)

Barraclough, Geoffrey. An Introduction to Contemporary History. London: C. A. Watts, 1964.

Citatione MLA (8a ed.)

Barraclough, Geoffrey. An Introduction to Contemporary History. C. A. Watts, 1964.