Helium-bearing natural gas /

Rogers, Gaillard Sherburne, 1889-1919.

Helium-bearing natural gas / by G. Sherburne Rogers. - Washington : U.S. Gov't. Print. Off., 1921. - 113 p. : maps (part fold.), tables, diagrs. ; 29 cm.

gs 21000177


Natural gas.

QE75 / .P9 no. 121

I 19.16:121

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