Water and Wastewater Design and Research,C E . (1998). How is Wastewater Treated? (Activated Sludge 6). Journal of Water and Wastewater; Ab va Fazilab (in persian), 9(3), 52-56. doi: 10.22093/wwj.1998.174660
MLA
Water and Wastewater Design and Research,C E . "How is Wastewater Treated? (Activated Sludge 6)", Journal of Water and Wastewater; Ab va Fazilab (in persian), 9, 3, 1998, 52-56. doi: 10.22093/wwj.1998.174660
HARVARD
Water and Wastewater Design and Research C E. (1998). 'How is Wastewater Treated? (Activated Sludge 6)', Journal of Water and Wastewater; Ab va Fazilab (in persian), 9(3), pp. 52-56. doi: 10.22093/wwj.1998.174660
CHICAGO
C E Water and Wastewater Design and Research, "How is Wastewater Treated? (Activated Sludge 6)," Journal of Water and Wastewater; Ab va Fazilab (in persian), 9 3 (1998): 52-56, doi: 10.22093/wwj.1998.174660
VANCOUVER
Water and Wastewater Design and Research C E. How is Wastewater Treated? (Activated Sludge 6). Journal of Water and Wastewater; Ab va Fazilab (in persian). 1998;9(3):52-56 (In Persian). doi: 10.22093/wwj.1998.174660
