Citazione Stile APA (7a Edizione)

Day, A. J., Campbell, J. (. R. E., & German, R. Political parties of the world (4th ed.). Cartermill.

Citazione stile Chigago Style (17a edizione)

Day, Alan J., John (John R. E. Campbell, e Richar German. Political Parties of the World. 4th ed. London: Cartermill.

Citatione MLA (9a ed.)

Day, Alan J., et al. Political Parties of the World. 4th ed. Cartermill.