Staar, R. F. (1971). The communist regimes in Eastern Europe. The Hoover Institution on War, Revolution and Peace Stanford University.
Lua i Stíl Chicago (17ú heag.)Staar, Richard Felix. The Communist Regimes in Eastern Europe. Stanford, California: The Hoover Institution on War, Revolution and Peace Stanford University, 1971.
Lua MLA (9ú heag.)Staar, Richard Felix. The Communist Regimes in Eastern Europe. The Hoover Institution on War, Revolution and Peace Stanford University, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.