Water and Wastewater Design and Research, C. E. (1998). How is Sewage Treated? (Activated Sludge 4). Journal of Water and Wastewater; Ab va Fazilab (in persian), 9(1), 57–62. https://doi.org/10.22093/wwj.1998.174272
MLA
Water and Wastewater Design and Research, C. E. "How is Sewage Treated? (Activated Sludge 4)", Journal of Water and Wastewater; Ab va Fazilab (in persian), 9, 1, 1998, 57–62. doi: 10.22093/wwj.1998.174272
HARVARD
Water and Wastewater Design and Research, C. E. (1998). 'How is Sewage Treated? (Activated Sludge 4)', Journal of Water and Wastewater; Ab va Fazilab (in persian), 9(1), pp. 57–62. doi: 10.22093/wwj.1998.174272
CHICAGO
Water and Wastewater Design and Research, C. E., "How is Sewage Treated? (Activated Sludge 4)." Journal of Water and Wastewater; Ab va Fazilab (in persian), 9 1 (1998): 57–62, doi: 10.22093/wwj.1998.174272
VANCOUVER
Water and Wastewater Design and Research C. E. How is Sewage Treated? (Activated Sludge 4). Journal of Water and Wastewater; Ab va Fazilab (in persian). 1998;9(1):57–62 (In Persian). doi: 10.22093/wwj.1998.174272
