Horan, N. J. (1990). Biological wastewater treatment systems: Theory and operation. New York: John Wiley and Sons.
استشهاد بنمط شيكاغوHoran, N. J. Biological Wastewater Treatment Systems: Theory and Operation. New York: John Wiley and Sons, 1990.
MLA استشهادHoran, N. J. Biological Wastewater Treatment Systems: Theory and Operation. New York: John Wiley and Sons, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.