Mora, D. (1989). Guidelines for the safe of wastewater and excreta in agriculture and aquaculture: Measures for public health protection. World Health Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mora, Duncan. Guidelines for the Safe of Wastewater and Excreta in Agriculture and Aquaculture: Measures for Public Health Protection. World Health Organization, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mora, Duncan. Guidelines for the Safe of Wastewater and Excreta in Agriculture and Aquaculture: Measures for Public Health Protection. World Health Organization, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.