APA (7th ed.) Zitazioa

Valdés, A. (2000). Agricultural support policies in transition economies. World Bank.

Chicago Style (17th ed.) Zitazioa

Valdés, Alberto. Agricultural Support Policies in Transition Economies. Washington, D.C.: World Bank, 2000.

MLA (9th ed.) Zitazioa

Valdés, Alberto. Agricultural Support Policies in Transition Economies. World Bank, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.