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, ebrary, Inc, Wiltshire, R. L., . . . Goss, C. M. (2007). 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.
Chicago-referens (17:e uppl.)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, och 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.
MLA-referens (9:e uppl.)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.