Fair, G. M., & Alexander Okum, D. (1958). Elements of water supply and wastewater disposal (2nd ed.). John Wiley.
استشهاد بنمط شيكاغوFair, Gordon Maskew, و Daniel Alexander Okum. Elements of Water Supply and Wastewater Disposal. 2nd ed. New York: John Wiley, 1958.
MLA استشهادFair, Gordon Maskew, و Daniel Alexander Okum. Elements of Water Supply and Wastewater Disposal. 2nd ed. John Wiley, 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.