Frayne, C. (2002). Boiler water treatment: Principles and practice. Chemical Publishing Co. Inc.
Lua i Stíl Chicago (17ú heag.)Frayne, Colin. Boiler Water Treatment: Principles and Practice. New York, NY: Chemical Publishing Co. Inc, 2002.
Lua MLA (9ú heag.)Frayne, Colin. Boiler Water Treatment: Principles and Practice. Chemical Publishing Co. Inc, 2002.
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