Cita APA (7th ed.)

HISTORY of the USSR. (1977). History of the Ussr. Progress pub..

Cita Chicago (17th ed.)

HISTORY of the USSR. History of the Ussr. Moscow: Progress pub., 1977.

Cita MLA (9th ed.)

HISTORY of the USSR. History of the Ussr. Progress pub., 1977.

Atenció: Aquestes cites poden no estar 100% correctes.