FAO. (1994). Water reports N21: Water quality management and control of water pollution. Rome: FAO.
Chicago Style aipamenaFAO. Water Reports N21: Water Quality Management and Control of Water Pollution. Rome: FAO, 1994.
MLA aipamenaFAO. Water Reports N21: Water Quality Management and Control of Water Pollution. Rome: FAO, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.