APA
WHO, . (1986). Guidelines for planning community participation activities in water supply and sanitation projects. Geneva: WHO Regional Publications.
Chicago
WHO, . 1986. Guidelines for planning community participation activities in water supply and sanitation projects. Geneva: WHO Regional Publications.
Harvard
WHO, . (1986). Guidelines for planning community participation activities in water supply and sanitation projects. Geneva: WHO Regional Publications.
MLA
WHO, . Guidelines for planning community participation activities in water supply and sanitation projects. Geneva: WHO Regional Publications. 1986.