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Coal Resources of the United States
A report about the United States's coal supply. The U.S. has 25 percent of the world's identified coal resources and about 20 percent of the world's estimated total coal resources.
Date:
January 1, 1974
Creator:
Averitt, Paul
System:
The UNT Digital Library
Preliminary Report on a Method for the Determination of Small Quantities of Thorium
The following report provides a summary of detailed procedures and methods given to small quantities (as low as 0.10 mg) of thorium in rocks and ores.
Date:
October 1, 1945
Creator:
Fahey, Joseph J. & Foster, Margaret D.
System:
The UNT Digital Library