APA (7th ed.) Zitazioa

Westwood, J. (1980). Russia since 1917. St. Martin's.

Chicago Style (17th ed.) Zitazioa

Westwood, J.N. Russia Since 1917. New York: St. Martin's, 1980.

MLA (9th ed.) Zitazioa

Westwood, J.N. Russia Since 1917. St. Martin's, 1980.