Bohi, D.R., and M.A. Toman. 1996. The Economics of Energy Security. Boston: Kluwer Academic Publishers.
Bohi, D.R., and W.D. Montgomery. 1982. Oil Prices, Energy Security, and Import Policy. Washington, D.C.: Johns Hopkins University Press for Resources for the Future. See esp. chapter 6.
Campbell and Associates. 1988. Helium Operations Reports for U.S. Bureau of Mines. BOM RFP J078010.
Curtis, J.B. 1996. "How Well Do We Know the Size of the U.S. Natural Gas Resource Base?" J. Pet. Tech. 48(1): 75-81.
Epple, D., and L. Lave. 1980. "Helium: Investments in the Future." Bell Journal of Economics (Autumn): 617-630.
Gage, B.D., and D.L. Driskill. 1998. "Helium Resources of the United States, 1997." Technical Note 403, U.S. Department of the Interior, Bureau of Land Management.
Hamak, J.E., and D.L. Driskill. 1994. "Helium Resources of the United States, 1993." Information Circular 9436, U.S. Department of the Interior, Bureau of Mines.
Hamak, J.E., and G.D. Gage. 1993. "Helium Resources of the United States, 1991." Information Circular 9342, U.S. Department of the Interior, Bureau of Mines.
Haussinger, P., R. Glatthaar, W. Rhode, H. Kick, C. Benkmann, J. Weber, W. Hans-Jorg, V. Stenke, E. Leicht, H. Stenger, and G. Groll. 1991. "Noble Gases." Ullmann's Encyclopedia of Industrial Chemistry , 5th ed., B. Elvers, S. Hawkins, and G. Schulz, eds. VCH A17, 485-539.
Hwang, S.-C., and W.R. Weltmer Jr. 1995. "Helium Group (Gases)." Encyclopedia of Chemical Technology, 4th ed., vol. 13, M. Howe-Grant, ed. New York, N.Y.: John Wiley & Sons, 1-39.
Krautkramer, J.A. 1998. J. Econ. Lit. 36(4): 2065-2107.
Labys, W. 1980. Market Structure, Bargaining Power, and Resource Price Formation. Lexington, Mass.: Lexington Books.
Laverick, C. 1975. "Helium Supply and Demand in Future Years," IEEE Trans. Magn. MAG-11(2): 109.
Mielke, J.E. 1996. "The Federal Helium Program: Reaction over an Inert Gas." 95-197 SPR, Congressional Research Service.
Mielke, J.E. 1999. "The Federal Helium Program: Terminated, But How Much Was Saved?" Report for Congress RS20070, Congressional Research Service.
Peterson, J.B. 1996. Helium: Annual Review—1996. Department of the Interior, U.S. Geological Survey, Mineral Industry Surveys.
Potential Gas Agency, Colorado School of Mines. 1995. "Potential Supply of Natural Gas in the United States - Report of the Potential Gas Committee (December 31, 1994)," Golden, Colo. Radetzki, M. 1978. "Market Structure and Bargaining Power: A Study of Three International Mineral Markets," Resources Policy 4: 115-125.
Scherer, F.M. 1971. Industrial Market Structure and Economic Performance. Chicago: Rand McNally.
Society of Petroleum Engineers/World Petroleum Congress. 1997. "SPE/WPC Reserves Definitions." Available at www.spe.org/technology2/reserves.html>.
Tully, P.C. 1987. "Helium." Encyclopedia of Chemical Processing and Design, vol. 26. J.J. McKetta and W.A. Cunningham, eds. New York, N.Y.: Marcel Dekker, 194-205.
U.S. Department of Energy, Office of Oil and Gas. 1998a. "U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves - 1997 Annual Report," Report No. DOE/EIA-0216(97) EIA. Washington, D.C.: Department of Energy.
U.S. Department of Energy, Office of Oil and Gas. 1998b. "Natural Gas Annual 1997," Report No. DOE/EIA-0131(97) EIA. Washington, D.C.: Department of Energy.