Trewavas, E. Tilapine fishes of the genera sarotherodon,oreocheromis and danakilia - British Museun London 1983 - 583p. - Tilapia Sarotherodon Oreocheromis Alcolapia Vallicola Nyasalapia Neotilapia Danakilia Nat. Bib. No.: 6890 Nat. Bib. Agency Control No.: 597TRE Subjects--Topical Terms: Fisheries Universal Decimal Class. No.: 597 1