FAO. (1997). Water reports N.13: Management of agricultural drainage water quality. Rome: FAO.
Chicago-tyylinen lähdeviittausFAO. Water Reports N.13: Management of Agricultural Drainage Water Quality. Rome: FAO, 1997.
MLA-viiteFAO. Water Reports N.13: Management of Agricultural Drainage Water Quality. Rome: FAO, 1997.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.