American Water Works Association, ebrary, Inc, & Ingram, W. M. (2004). Problem organisms in water: Identification and treatment (3rd ed.). American Water Works Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American Water Works Association, Inc ebrary, و William Marcus Ingram. Problem Organisms in Water: Identification and Treatment. 3rd ed. Denver, Colo.: American Water Works Association, 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)American Water Works Association, et al. Problem Organisms in Water: Identification and Treatment. 3rd ed. American Water Works Association, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.