KOZLOV, G. (1977). Political economy: Socialism. Progress pub.
Chicago Style (17th ed.) ZitazioaKOZLOV, G.A. Political Economy: Socialism. Moscow: Progress pub, 1977.
MLA (9th ed.) ZitazioaKOZLOV, G.A. Political Economy: Socialism. Progress pub, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.