Riise, Ulf Project: flood control. Mkondoa river system.flood frequencies and flow characteristics Ulf Riise - Dar es Salaam : University of Dar es Salaam, 1972. - 9p. : ill. ; 33cm. Subjects--Topical Terms: Mkondoa River-FloodsFloods, Rivers, Tanzania LC Class. No.: EAF QTO H62.5.T3E2 No.41