Technology for water supply and sanitation in developing countries report of a WHO Study Group.
| مؤلف مشترك: | |
|---|---|
| التنسيق: | كتاب |
| اللغة: | English |
| منشور في: |
Geneva
World Health Organization
1987.
|
| سلاسل: | Technical report series (World Health Organization)
742. |
| الموضوعات: |