Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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