FAO. (1991). Cereal policies review: 1990-1991. Rome: FAO.
Chicago Style aipamenaFAO. Cereal Policies Review: 1990-1991. Rome: FAO, 1991.
MLA aipamenaFAO. Cereal Policies Review: 1990-1991. Rome: FAO, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.