Gaya APA

Gathorne-Hardy, G, M. (1950). A Short History of International Affairs 1920-1939 (1). London, UK: Oxford University Press - London.

Gaya MLA

Gathorne-Hardy, G., M.. "A Short History of International Affairs 1920-1939". 1 London, UK: Oxford University Press - London, 1950. Koleksi Elektronik.