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Helium resources of the United States, 1987 /
by Richard D. Miller.

APA Citation

Miller, R. D. (1988). Helium resources of the United States, 1987. [Pittsburgh, Pa.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

Miller, Richard D. Helium Resources of the United States, 1987. [Pittsburgh, Pa.]: U.S. Dept. of the Interior, Bureau of Mines, 1988.

Warning: These citations may not always be complete (especially for serials).