Who guidelines for the safe use of water, excreta and greywater: Wastewater use in agriculture - Geneva World Health Organization 2006 - 196p. xiii - Two . Book Eng. ISBN: 9241546867 9241546824 9241546832 9241546840 9241546859 Subjects--Topical Terms: Water supplyWater supply-legislationAgricultureAquacultureSewageWastewater treatment plantsGuidelines National Library of Medicine Call No.: WA 675