Project, U. S. G. S. F. R. I. R., & Knepper, D. H. <. (2002). Planning for the conservation and development of infrastructure resources in urban areas - Colorado Front Range urban corridor. US Geological Survey circular 1219.
Chicago Style CitationProject, United States Geological Survey Front Range Infrastructure Resources, and Daniel H. <junior> Knepper. "Planning for the Conservation and Development of Infrastructure Resources in Urban Areas - Colorado Front Range Urban Corridor." US Geological Survey Circular 1219 2002.
MLA CitationProject, United States Geological Survey Front Range Infrastructure Resources, and Daniel H. <junior> Knepper. "Planning for the Conservation and Development of Infrastructure Resources in Urban Areas - Colorado Front Range Urban Corridor." US Geological Survey Circular 1219 2002.