Citazione Stile APA (7a Edizione)

Campbell, C. (1990). Politics and government in Europe today. Harcourt Brace Jovanovich.

Citazione stile Chigago Style (17a edizione)

Campbell, Colin. Politics and Government in Europe Today. San Diego, Calif. [u.a.]: Harcourt Brace Jovanovich, 1990.

Citatione MLA (9a ed.)

Campbell, Colin. Politics and Government in Europe Today. Harcourt Brace Jovanovich, 1990.