Swantz, Marja-Liisa Participation and exchange of knowledge in water technlogy Marja-Liisa Swantz - Helsinki TECO 1983 - 32p. ILL. 30CM. - TECO Publications; 2 . Includes bibliography Subjects--Topical Terms: Water supplyResearchMtwara region LC Class. No.: IRA TD353.T3S82