APA (7th ed.) Zitazioa
Heilbroner, R. L. (1980). Marxism: For and against. W. W. Norton.
Chicago Style (17th ed.) Zitazioa
Heilbroner, Robert L. Marxism: For and Against. New York: W. W. Norton, 1980.
MLA (9th ed.) Zitazioa
Heilbroner, Robert L. Marxism: For and Against. W. W. Norton, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.