Watt, D. C., & Bullock, A. (1969). Contemporary history in Europe: Introduction by Alan Bullock. Allen and Unwin.
Lua i Stíl Chicago (17ú heag.)Watt, Donald Cameron, agus Alan Bullock. Contemporary History in Europe: Introduction by Alan Bullock. London: Allen and Unwin, 1969.
Lua MLA (9ú heag.)Watt, Donald Cameron, agus Alan Bullock. Contemporary History in Europe: Introduction by Alan Bullock. Allen and Unwin, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.