Water and Wastewater Design and Research, C. E. (1998). How is Sewage Treated? (Activated Sludge 3). Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 8(4), 60-65. doi: 10.22093/wwj.1998.174220
MLA
Consultant Engineers Water and Wastewater Design and Research. "How is Sewage Treated? (Activated Sludge 3)". Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 8, 4, 1998, 60-65. doi: 10.22093/wwj.1998.174220
HARVARD
Water and Wastewater Design and Research, C. E. (1998). 'How is Sewage Treated? (Activated Sludge 3)', Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 8(4), pp. 60-65. doi: 10.22093/wwj.1998.174220
VANCOUVER
Water and Wastewater Design and Research, C. E. How is Sewage Treated? (Activated Sludge 3). Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 1998; 8(4): 60-65. doi: 10.22093/wwj.1998.174220