APA aipamena

Lange, O. (1971). Political economy. Pergamon Press.

Chicago Style aipamena

Lange, Oskar. Political Economy. Oxford: Pergamon Press, 1971.

MLA aipamena

Lange, Oskar. Political Economy. Pergamon Press, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.