Worrell, W. A. (2011). Solid waste engineering, si. South-Western, Cengage Learning.
استشهاد بنمط شيكاغوWorrell, William A. Solid Waste Engineering, Si. South-Western, Cengage Learning, 2011.
MLA استشهادWorrell, William A. Solid Waste Engineering, Si. South-Western, Cengage Learning, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.