Cita APA (7a ed.)

Bunyan, T. (1976). The history and practice of the political police in Britain. Friedmann.

Cita Chicago Style (17a ed.)

Bunyan, Tony. The History and Practice of the Political Police in Britain. London: Friedmann, 1976.

Cita MLA (8a ed.)

Bunyan, Tony. The History and Practice of the Political Police in Britain. Friedmann, 1976.