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Denver Geotechnical Symposium, American Society of Civil Engineers. Colorado Section. Geotechnical Group, Association of Environmental & Engineering Geologists. Rocky Mountain Section, Colorado Association of Geotechnical Engineers, Inc ebrary, Richard L. Wiltshire, Minal L. Parekh, and Christoph M. Goss. Geo-volution: The Evolution of Colorado's Geological and Geotechnical Engineering Practice : Proceedings of the 2006 Biennial Geotechnical Seminar, November 10, 2006, Denver, Colorado. Reston, Va.: American Society of Civil Engineers, 2007.

Denver Geotechnical Symposium, et al. Geo-volution: The Evolution of Colorado's Geological and Geotechnical Engineering Practice : Proceedings of the 2006 Biennial Geotechnical Seminar, November 10, 2006, Denver, Colorado. American Society of Civil Engineers, 2007.