APA (7th ed.) Citation

Butler & Sloman. (1980). British political facts 1900-1979 (5th ed.). Macmillan.

Chicago Style (17th ed.) Citation

Butler and Sloman. British Political Facts 1900-1979. 5th ed. London: Macmillan, 1980.

MLA (8th ed.) Citation

Butler and Sloman. British Political Facts 1900-1979. 5th ed. Macmillan, 1980.