. "Appendix E: Presentations by Stakeholder Groups." Black and Smokeless Powders: Technologies for Finding Bombs and the Bomb Makers. Washington, DC: The National Academies Press, 1998.
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Johnson Matthey Electronics,
La Roche Industries,
Los Angeles County Sheriff's Department,
National Industrial Sand Association,
National Lime Association,
National Mining Association,
National Stone Association,
National Utility Contractors Association,
The Associated General Contractors of America,
The Fertilizer Institute,
The Gypsum Association, and
Wiley, Rein & Fielding (representing UNIMIN, a supplier of high-quality silica used in semiconductor manufacturing).