1. Allen, E. (1984a) Personal communication.
2. Allen, E. (1984b) Personal communication.
3. Alaska: a guide to geothermal energy development;Basescu,1980
4. Birkby, J. and Chapman, M. Montana Geothermal Committee report. Montana Department of Resources and Conservation.
5. Memorandum: proposed regulations for geothermal feasibility study and related licensing, and reservoir confirmation loans;Black,1980