Mbeya, King Reuben study of the impact of sewage effluent on water quality of viyele stream / by Mbeya, King Reuben - Mzuzu: Mzuni, 2013 - xii, 37p. : ill. ; 29 cm - BSCE . includes bibliographical reference and appendices ISBN: 007991 Subjects--Topical Terms: sewage effluent--Viyele Stream --dissertation