(2001). Air-Release, Air/Vacuum and Combination Air Valves: [manual of water supply practices]. American Water Works Assoc.
Chicago-Zitierstil (17. Ausg.)Air-Release, Air/Vacuum and Combination Air Valves: [manual of Water Supply Practices]. Denver, Colo: American Water Works Assoc, 2001.
MLA-Zitierstil (9. Ausg.)Air-Release, Air/Vacuum and Combination Air Valves: [manual of Water Supply Practices]. American Water Works Assoc, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.