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Helium resources of the United States, 1979

Helium resources of the United States, 1981

Helium resources of the United States, 1983

Helium resources of the United States, 1985

Helium resources of the United States, 1987

Published Year

• 1980-1989 (5) *

Subject

• Helium--United States (5) *

Author

• Miller, Richard D. (4)
• Hertweck, Floyd R., (1)
• Moore, B. J. (1)

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