1. Raymond L. Anderson, and Milton Robert , 1979 . Trends in Price and Delivery of Water by Municipal and Rural-Domestic Water Systems, Northern Front Range Region of Colorado, 1972-78 . Colorado State University Cooperative Extension Service, Fort Collins, Colorado.
2. Dennis A. Bode , 1980 . Water Supply Alternatives to Meet Future Demands . Preliminary Report of the Water Utilities Department, City of Fort Collins, Colorado.
3. Colorado Department of Agriculture , 1981 . Colorado Agricultural Statistics.
4. Lawrence R. Conklin , 1975 . Costs and Returns for Irrigated Crop Production in the Lower South Platte Valley, Colorado . Colorado State University Cooperative Extension Serivce Bulletin 491A, Fort Collins, Colorado.