APA (7th ed.) Citation

Day, A. J. (2002). Political parties of the world (5th ed.). John Harper.

Chicago Style (17th ed.) Citation

Day, Alan J. Political Parties of the World. 5th ed. London: John Harper, 2002.

MLA (9th ed.) Citation

Day, Alan J. Political Parties of the World. 5th ed. John Harper, 2002.