Water Environment Federation. (2008). Operation of municipal wastewater treatment plants (6th ed.). New York: WEF Press ; McGraw Hill.
استشهاد بنمط شيكاغوWater Environment Federation. Operation of Municipal Wastewater Treatment Plants. 6th ed. New York: WEF Press ; McGraw Hill, 2008.
MLA استشهادWater Environment Federation. Operation of Municipal Wastewater Treatment Plants. 6th ed. New York: WEF Press ; McGraw Hill, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.