Method of analysis of impurities in helium in the parts-per-billion range /
by G.W. Weems and David E. Emerson.
APA Citation
Weems, G. W., Emerson, D. E., United States. Bureau of Mines. (1966). Method of analysis of impurities in helium in the parts-per-billion range. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.
MLA Citation
Weems, George W, David E Emerson, and United States. Bureau of Mines. Method of Analysis of Impurities In Helium In the Parts-per-billion Range. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1966.
Warning: These citations may not always be complete (especially for serials).