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Rare earth minerals and 21st century industry hearing before the Subcommittee on Investigations and Oversight, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, March 16, 2010
- "Rare earth minerals and twenty-first century industry"
- "Rare earth minerals and twenty-first century industry"@en
- "Rare earth minerals and 21st century industry hearing before the Subcommittee on Investigations and Oversight, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, March 16, 2010"
- "Rare earth minerals and 21st century industry hearing before the Subcommittee on Investigations and Oversight, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, March 16, 2010"@en
- "Rare earth minerals and 21st century industry : hearing before the Subcommittee on Investigations and Oversight, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, March 16, 2010"@en