APA (7th ed.) Zitazioa

RICARDO, D. (1969). The principles of political economy and taxation. Dutton.

Chicago Style (17th ed.) Zitazioa

RICARDO, David. The Principles of Political Economy and Taxation. London: Dutton, 1969.

MLA (9th ed.) Zitazioa

RICARDO, David. The Principles of Political Economy and Taxation. Dutton, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.