Eckstein, H. (1961). A theory of stable democracy. s. n.
Lua i Stíl Chicago (17ú heag.)Eckstein, Harry. A Theory of Stable Democracy. [Princeton, N. J.]: s. n, 1961.
Lua MLA (9ú heag.)Eckstein, Harry. A Theory of Stable Democracy. s. n, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.