APA (7th ed.) Zitazioa
ebrary, Inc, & American Water Works Association. (2001). Air-release, air/vacuum, and combination air valves. American Water Works Association.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta American Water Works Association. Air-release, Air/vacuum, and Combination Air Valves. Denver: American Water Works Association, 2001.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta American Water Works Association. Air-release, Air/vacuum, and Combination Air Valves. American Water Works Association, 2001.
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