FAO. (1999). FAO plant production and protection paper; N151: Seed policy and programmes for sub-Saharan Africa. Rome: FAO.
Chicago Style aipamenaFAO. FAO Plant Production and Protection Paper; N151: Seed Policy and Programmes for Sub-Saharan Africa. Rome: FAO, 1999.
MLA aipamenaFAO. FAO Plant Production and Protection Paper; N151: Seed Policy and Programmes for Sub-Saharan Africa. Rome: FAO, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.