Conservation of helium gas
Subtitle: hearings before the Committee on Military Affairs, House of Representatives, Sixty-eighth Congress, first session, on H.R. 5722 : a bill authorizing the conservation, production, and exploitation of helium gas, a mineral resource pertaining to the national defense, and to the development of commercial aeronautics, and for other purposes : Thursday, March 20, 1924
Publisher: G.P.O.
Published: 1924
Place of publication: Washington [D.C.]
Language: eng
Number of pages: 35
Subjects: Helium
Notes: Cover title.