MLA

Staar, Richard Felix. The Communist Regimes In Eastern Europe. 2d rev. ed. Stanford, Calif.: Hoover Institution on War, Revolution, and Peace, 1971.

APA

Staar, R. Felix. (1971). The Communist regimes in Eastern Europe. 2d rev. ed. Stanford, Calif.: Hoover Institution on War, Revolution, and Peace.

Chicago

Staar, Richard Felix, The Communist Regimes In Eastern Europe. 2d rev. ed. Stanford, Calif.: Hoover Institution on War, Revolution, and Peace, 1971.