Downs, A. (1957). An economic theory of democracy. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Downs, Anthony. An Economic Theory of Democracy. New York: Harper & Row, 1957.
Lua MLA (9ú heag.)Downs, Anthony. An Economic Theory of Democracy. Harper & Row, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.