1. Manufactured Gas Plants: The Environmental Legacy. Technical Outreach Services of Communities Program;Fischer,2003
2. USEPA Office of Solid Waste and Emergency Response; Cleaning Up the Nations Waste Sites: Markets and Technology Trends, 2004 Edition (EPA 542-R-04-015); Chapter 10, Demand for Remediation of Manufactured Gas Plants and Related Coal Tar Sites.
3. Use of Fly Ash in Concrete. NCHRP 127 (October);Halstead,1986