Tohutoro APA (7th ed.)
ebrary, Inc. (2000). The impact of selling the federal helium reserve. National Academy Press.
Tohutoru Kātū Chicago (17th ed.)
ebrary, Inc. The Impact of Selling the Federal Helium Reserve. Washingon, D.C.: National Academy Press, 2000.
Tohutoro MLA (9th ed.)
ebrary, Inc. The Impact of Selling the Federal Helium Reserve. National Academy Press, 2000.
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