World Health Organization. 2015. Sanitation safety planning: Manual for safe use and disposal of wastewater, greywater and excreta. Geneva: World Health Organization.
Citace podle APA (7th ed.)World Health Organization. (2015). Sanitation safety planning: Manual for safe use and disposal of wastewater, greywater and excreta. World Health Organization.
Citace podle Chicago (17th ed.)World Health Organization. Sanitation Safety Planning: Manual for Safe Use and Disposal of Wastewater, Greywater and Excreta. Geneva: World Health Organization, 2015.
Citace podle MLA (9th ed.)World Health Organization. Sanitation Safety Planning: Manual for Safe Use and Disposal of Wastewater, Greywater and Excreta. World Health Organization, 2015.
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