Low-cost water supply and sanitation technology: pollution and health problems.
- New Delhi: World Health Organization, 1984.
- v, 40 p. : fgr., tbl. ; 17 cm.
- SEARO Regional Health Papers no. 4 .
9290221739
Water-supply
Su sağlama
333.91 / LOW 1984
9290221739
Water-supply
Su sağlama
333.91 / LOW 1984