Improving services for the poor a program strategy for the 1990s

Improving services for the poor a program strategy for the 1990s

التفاصيل البيبلوغرافية
مؤلفون مشاركون: UNDP-World Bank Water and Sanitation Program, World Bank
التنسيق: كتاب
اللغة:English
منشور في: Washington, D.C. World Bank c1992.
الموضوعات:
Water quality.
Sanitation.