U.S.EPA. Guide to cleaner technologies. Alternative metal finishes. September 1994 (PDF)
U.S.EPA and STA. Best practices for metal finishing line operators. Operator training workshop at gold seal plating. March 1998 (PDF)
U.S.EPA and STA. Pollution prevention technologies for metal finishing operations. Workshop 5: Environmental training workshop for metal finishers. July 1998 (PDF)
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