Cita APA (7th ed.)

Birch, A. H. (1983). The British system of government (6th ed.). Allen & Unwin.

Cita Chicago (17th ed.)

Birch, A. H. The British System of Government. 6th ed. London: Allen & Unwin, 1983.

Cita MLA (8th ed.)

Birch, A. H. The British System of Government. 6th ed. Allen & Unwin, 1983.