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Num Mark Titles (1-10 of 10) Year Entries
10 Found
1 Helium : Francisco, Rudy,  2017 1
2 Helium-3 and helium-4 : Keller, W. E.  1969 1
3 Helium 4 : Galasiewicz, Zygmunt M.  1971 1
4 Helium : characteristics, compounds, and applications   2011 1
5 Helium, child of the sun : Seibel, Clifford W.,  1968 1
6 Helium Extraction Act of 2017 : report (to accompany H.R. 3279) (including cost estimate of the Cong : United States.  2018 1
7 Helium : occurrence, applications and biological effects   2013 1
8 Helium or hydrogen in the balloon? -- : Grimvall, Göran.  2007 1
9 Helium stewardship (2013) : United States.  2013 1
10 Helium stewardship : report (to accompany S. 783). : United States.  2013 1
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