Skrentuer, R. G. (1990). Instrumentation Handbook For Water Wastewater Treatment Plants Robert G. Skrenteur. Lewis.
Lua i Stíl Chicago (17ú heag.)Skrentuer, Robert G. Instrumentation Handbook For Water Wastewater Treatment Plants Robert G. Skrenteur. Lewis, 1990.
Lua MLA (8ú heag.)Skrentuer, Robert G. Instrumentation Handbook For Water Wastewater Treatment Plants Robert G. Skrenteur. Lewis, 1990.
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