Ouano, E. (1983). Principles of Waste Water Treatment. National Science Development Board.
Chicago Style aipamenaOuano, E.A.R. Principles of Waste Water Treatment. Manila: National Science Development Board, 1983.
MLA aipamenaOuano, E.A.R. Principles of Waste Water Treatment. National Science Development Board, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.