APA aipamena

Ullman, R. H. (1961). Anglo-Soviet relations, 1917-1921. Princeton University Press.

Chicago Style aipamena

Ullman, Richard Henry. Anglo-Soviet Relations, 1917-1921. Princeton, N. J: Princeton University Press, 1961.

MLA aipamena

Ullman, Richard Henry. Anglo-Soviet Relations, 1917-1921. Princeton University Press, 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.