WHO Study Group on Technology for Water Supply and Sanitation in Developing Countries. (1987). Technology for water supply and sanitation in developing countries: Report of a WHO study group. World Health Organizaton.
Παραπομπή σε μορφή Chicago (17η εκδ.)WHO Study Group on Technology for Water Supply and Sanitation in Developing Countries. Technology for Water Supply and Sanitation in Developing Countries: Report of a WHO Study Group. Geneva: World Health Organizaton, 1987.
Παραπομπή σε μορφή MLA (9th εκδ.)WHO Study Group on Technology for Water Supply and Sanitation in Developing Countries. Technology for Water Supply and Sanitation in Developing Countries: Report of a WHO Study Group. World Health Organizaton, 1987.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.