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Displaying 1-3 of 3 results for author "Emerson, David E."
An improved method for preparing gravimetric standard gas mixtures of helium-4 in nitrogen / by Nabil A. Bibawy and David E. Emerson.
- Text
- Washington, D.C. (2401 E St., N.W., MS #9800, Washington 20241) : U.S. Dept. of the Interior, Bureau of Mines, 1990.
- 1990
Method and apparatus for direct determination of helium-3 in natural gas and helium [microform] / by Thomas A. Davidson and David E. Emerson.
- Text
- Washington, D.C. : U.S. Dept. of Interior, Bureau of Mines, 1990.
- 1991-1990
Method and apparatus for direct determination of helium-3 in natural gas and helium / by Thomas A. Davidson and David E. Emerson.
- Text
- Washington, D.C. : U.S. Dept. of Interior, Bureau of Mines, 1990.
- 1990
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