1. S. Diamond, “Utilization of Fly Ash”, Cement and Concrete Research (this volume).
2. G. J. McCarthy, K. E. Swanson, L. P. Keller and W. C. Blatter, Minerology of Western Fly Ash, Cement and Concrete Research (this volume).
3. G. J. McCarthy, L. P. Keller, P. J. Schields, M. P. Elless and K. C. Galbreath, Mineralogical Characterization of a Lignite Gasification Ash from a Low-BTU Fixed-Bed Gasifier, Cement and Concrete Research (this volume).
4. Mineral Wood Production From Coal Ash — A Progress Report, #38;Lawrence,1969
5. Production of Mineral Wool from Coal Ash Slag,1969