Dahl, R. A. (1991). Modern political analysis (5th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Dahl, Robert Alan. Modern Political Analysis. 5th ed. Englewood Cliffs, N.J: Prentice-Hall, 1991.
Lua MLA (9ú heag.)Dahl, Robert Alan. Modern Political Analysis. 5th ed. Prentice-Hall, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.