APA aipamena

Vigor, P. (1971). Books on communism and the communist countries. London: Ampersand.

Chicago Style aipamena

Vigor, P.H. Books on Communism and the Communist Countries. London: Ampersand, 1971.

MLA aipamena

Vigor, P.H. Books on Communism and the Communist Countries. London: Ampersand, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.