Harrigan, J., & Thirtle, L. C. (1992). Agricultural price policy: Government and the market. Food and Agriculture Organization of the United Nations.
Chicago Style aipamenaHarrigan, Jane, and Loader C. Thirtle. Agricultural Price Policy: Government and the Market. Rome: Food and Agriculture Organization of the United Nations, 1992.
MLA aipamenaHarrigan, Jane, and Loader C. Thirtle. Agricultural Price Policy: Government and the Market. Food and Agriculture Organization of the United Nations, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.