Valdés, A. (2000). Agricultural support policies in transition economies. World Bank.
Παραπομπή σε μορφή Chicago (17η εκδ.)Valdés, Alberto. Agricultural Support Policies in Transition Economies. Washington, D.C.: World Bank, 2000.
Παραπομπή σε μορφή MLA (9th εκδ.)Valdés, Alberto. Agricultural Support Policies in Transition Economies. World Bank, 2000.