METCALF. (1991). Wastewater Engineering Treatment Disposal Reuse Metcalf And Eddy. McGraw-Hill.
Chicago-viite (17. p.)METCALF. Wastewater Engineering Treatment Disposal Reuse Metcalf And Eddy. McGraw-Hill, 1991.
MLA-viite (8. p.)METCALF. Wastewater Engineering Treatment Disposal Reuse Metcalf And Eddy. McGraw-Hill, 1991.
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