APA-referens (7:e uppl.)

Campbell, G. A. (1955). The civil service in Britain. Penguin Books.

Chicago-referens (17:e uppl.)

Campbell, George Archibald. The Civil Service in Britain. Harmondsworth, Middlesex: Penguin Books, 1955.

MLA-referens (9:e uppl.)

Campbell, George Archibald. The Civil Service in Britain. Penguin Books, 1955.