APA (7th ed.) Zitazioa
Ellis, F. (1992). Agricultural policies in developing countries. Cambridge University Press.
Chicago Style (17th ed.) Zitazioa
Ellis, Frank. Agricultural Policies in Developing Countries. Cambridge ; New York: Cambridge University Press, 1992.
MLA (9th ed.) Zitazioa
Ellis, Frank. Agricultural Policies in Developing Countries. Cambridge University Press, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.