APA (7th ed.) Zitazioa
Metcalf & Eddy & Tchobanoglous, G. (1979). Wastewater Engineering: Treatment, Disposal, and Reuse (2nd ed.). McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
Metcalf & Eddy eta George Tchobanoglous. Wastewater Engineering: Treatment, Disposal, and Reuse. 2nd ed. New York ; New delhi: McGraw-Hill, 1979.
MLA (9th ed.) Zitazioa
Metcalf & Eddy eta George Tchobanoglous. Wastewater Engineering: Treatment, Disposal, and Reuse. 2nd ed. McGraw-Hill, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.