Cita APA (7a ed.)

Mackenzie, K. R. (1950). The English parliament. Penguin.

Cita Chicago Style (17a ed.)

Mackenzie, K. R. The English Parliament. Harmondsworth, Middlesex: Penguin, 1950.

Cita MLA (8a ed.)

Mackenzie, K. R. The English Parliament. Penguin, 1950.