Citazione Stile APA (7a Edizione)

Macridis, R. C. (1987). Modern political systems: Europe (6th ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Macridis, Roy C. Modern Political Systems: Europe. 6th ed. Englewood, N.J: Prentice-Hall, 1987.

Citatione MLA (9a ed.)

Macridis, Roy C. Modern Political Systems: Europe. 6th ed. Prentice-Hall, 1987.