Worrell, W. A. (2012). Solid Waste Engineering. Cengage Learning.
Chicago-čujuhus (17. p.)Worrell, William A. Solid Waste Engineering. New Delhi: Cengage Learning, 2012.
MLA-čujuhus (9. p.)Worrell, William A. Solid Waste Engineering. Cengage Learning, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.