Water supply and sanitation in development
Concentrates on the global need for water and shows a number of schemes that have successfully exploited low-cost water-supply systems. Shows in some detail the construction and maintenance of actual water-supply facilities, explaining their design features and pointing up their various advantages...
Corporate Author: | |
---|---|
Other Authors: | , , |
Format: | Visual Material |
Language: | English |
Published: |
[S.l.]
National Film Board of Canada
1985.
|
Subjects: |