Wastewater engineering : treatment, disposal and reuse - Τσομπανόγλου, Γιώργος; Burton, Franklin L.; Tchobanoglous, George; Burton, Franklin L.; Burton, Franklin; Tchobanoglous, George; Tchobanoglous, George; Burton, Franklin L.,; Tchobanoglous, George; Τσομπάνογλου, Γιώργος; Burton, Franklin L. (McGraw-Hill series in water resources and environmental engineering, 1991)