APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

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