Helium Resources Of The United States 1993... Information Circular... IC 9436... U.S. Department Of The Interior... 1995.
Contributors: United States. Bureau of Mines.
Publisher: s.n.
Published: 1997
Place of publication: [S.l
Language: eng
Notes: Shipping List #: 97-0735-M.

Shipping List Date: 07/28/97.