Cita APA

Butler, D., & Sloman,Anne. (1963). British political facts 1900-1975 (4th ed.). The Macmillan press.

Citación estilo Chicago

Butler, David, y Sloman,Anne. British Political Facts 1900-1975. 4th ed. London: The Macmillan press, 1963.

Cita MLA

Butler, David, y Sloman,Anne. British Political Facts 1900-1975. 4th ed. The Macmillan press, 1963.