Water and Wastewater Design and Research, C. E. (1997). How is Wastewater Treated? (Activated Sludge 1). Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 8(2), 59-64. doi: 10.22093/wwj.1997.174179
MLA
Consultant engineers Water and Wastewater Design and Research. "How is Wastewater Treated? (Activated Sludge 1)". Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 8, 2, 1997, 59-64. doi: 10.22093/wwj.1997.174179
HARVARD
Water and Wastewater Design and Research, C. E. (1997). 'How is Wastewater Treated? (Activated Sludge 1)', Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 8(2), pp. 59-64. doi: 10.22093/wwj.1997.174179
VANCOUVER
Water and Wastewater Design and Research, C. E. How is Wastewater Treated? (Activated Sludge 1). Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 1997; 8(2): 59-64. doi: 10.22093/wwj.1997.174179