APA (7th ed.) Citation

Miller, R. D., & Hamak, J. E. (1990). Helium resources of the United States, 1989. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Miller, Richard D., and John E. Hamak. Helium Resources of the United States, 1989. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1990.

MLA (9th ed.) Citation

Miller, Richard D., and John E. Hamak. Helium Resources of the United States, 1989. U.S. Dept. of the Interior, Bureau of Mines, 1990.