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Lua i Stíl Chicago (17ú heag.)American Water Works Association agus Inc ebrary. Water Meters: Selection, Installation, Testing, and Maintenance. 5th ed. Denver, Colo.: American Water Works Association, 2012.
Lua MLA (9ú heag.)American Water Works Association agus Inc ebrary. Water Meters: Selection, Installation, Testing, and Maintenance. 5th ed. American Water Works Association, 2012.
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