A bibliography of important tilapias (pisces: cichlidae) for aquaculture : Oreochromis macrochir, O.aureus, O.hornorum, O.mossambicus, O.niloticus, Sarotherodon galilaeus,Tilapia rendalli and T.zillii. - Schoenen, Peter (International center for living aquatic resourses management III, 1984)