APA (7th ed.) Citation

World Health Organization. (2006). Guidelines for the safe use of wastewater, excreta and greywater ([3rd ed.].). World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization. Guidelines for the Safe Use of Wastewater, Excreta and Greywater. [3rd ed.]. Geneva: World Health Organization, 2006.

MLA (9th ed.) Citation

World Health Organization. Guidelines for the Safe Use of Wastewater, Excreta and Greywater. [3rd ed.]. World Health Organization, 2006.