APA (7th ed.) Zitazioa
Pizzi, N. G. (2007). Pretreatment field guide. American Water Works Association.
Chicago Style (17th ed.) Zitazioa
Pizzi, Nicholas G. Pretreatment Field Guide. Denver, Colo.: American Water Works Association, 2007.
MLA (9th ed.) Zitazioa
Pizzi, Nicholas G. Pretreatment Field Guide. American Water Works Association, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.