Pipes, R. (1964). The formation of the Soviet Union: Communism and nationalism, 1917-1923. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Pipes, Richard. The Formation of the Soviet Union: Communism and Nationalism, 1917-1923. Cambridge: Harvard University Press, 1964.
Lua MLA (9ú heag.)Pipes, Richard. The Formation of the Soviet Union: Communism and Nationalism, 1917-1923. Harvard University Press, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.