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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

Helium resources of the United States, 1989

Published Year

• 1980-1989 (4)
• 1990-1999 (1)

Subject

• Helium--United States (5) *

Author

• Miller, Richard D. (5) *
• Hamak, John E. (1)
• Hertweck, Floyd R., (1)

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