Cita APA

 Worrell, W. A. (2011).  Solid waste engineering, si.  South-Western, Cengage Learning.

Chicago Style Citation

 Worrell, William A.  Solid Waste Engineering, Si.  South-Western, Cengage Learning, 2011.

Cita MLA

 Worrell, William A.  Solid Waste Engineering, Si.  South-Western, Cengage Learning, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.