Water and Wastewater Design and Research,C E . (1998). How is Wastewater Treated? (Activated Sludge 5). Journal of Water and Wastewater; Ab va Fazilab (in persian), 9(2), 47-51. doi: 10.22093/wwj.1998.174491
MLA
Water and Wastewater Design and Research,C E . "How is Wastewater Treated? (Activated Sludge 5)", Journal of Water and Wastewater; Ab va Fazilab (in persian), 9, 2, 1998, 47-51. doi: 10.22093/wwj.1998.174491
HARVARD
Water and Wastewater Design and Research C E. (1998). 'How is Wastewater Treated? (Activated Sludge 5)', Journal of Water and Wastewater; Ab va Fazilab (in persian), 9(2), pp. 47-51. doi: 10.22093/wwj.1998.174491
CHICAGO
C E Water and Wastewater Design and Research, "How is Wastewater Treated? (Activated Sludge 5)," Journal of Water and Wastewater; Ab va Fazilab (in persian), 9 2 (1998): 47-51, doi: 10.22093/wwj.1998.174491
VANCOUVER
Water and Wastewater Design and Research C E. How is Wastewater Treated? (Activated Sludge 5). Journal of Water and Wastewater; Ab va Fazilab (in persian). 1998;9(2):47-51 (In Persian). doi: 10.22093/wwj.1998.174491