Kruijff, G. J. W. de Water supply improvement for upgrading areas; with special references to automatic self-closing taps - Nairobi : Housing Research and Development Unity: University of Nairobi, 1979 - 31p. : ill. ; 26cm. Subjects--Topical Terms: Water supply, ruralTanzania LC Class. No.: EAF PAM TD333.W39D4