A planner's guide.
Kalbermatten, J. M. ; Julius, D. ; Mara, D. D.
A planner's guide. - 194p. - (Appropriate technology for water supply and sanitation ; v. 2) .
Water supply--Organization and administration
Sanitation
Technology, appropriate
A planner's guide. - 194p. - (Appropriate technology for water supply and sanitation ; v. 2) .
Water supply--Organization and administration
Sanitation
Technology, appropriate