Unesco, World Health Organization, United Nations Environment Programme, ebrary, Inc, & Chapman, D. V. (1996). Water quality assessments: A guide to the use of biota, sediments, and water in environmental monitoring (2nd ed.). E & FN Spon.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Unesco, World Health Organization, United Nations Environment Programme, Inc ebrary, و Deborah V. Chapman. Water Quality Assessments: A Guide to the Use of Biota, Sediments, and Water in Environmental Monitoring. 2nd ed. London ; New York: E & FN Spon, 1996.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Unesco, et al. Water Quality Assessments: A Guide to the Use of Biota, Sediments, and Water in Environmental Monitoring. 2nd ed. E & FN Spon, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.