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1 The journal of the National Association of College Teachers of Agriculture von National Association of College Teachers of Agriculture [USA] : [The National Association of College Teachers of Agriculture], 1959-1963 E-Zeitschrift
2 Metal industry indicators von United States Geological Survey Reston, Va : U.S. Dept. of the Interior, U.S. Geological Survey, 2000- E-Zeitschrift Open Access
3 Radioactive effluents from nuclear power plants von USA / Office of Nuclear Reactor Regulation Washington, DC : Elektronische Ressource, 20XX- E-Zeitschrift Open Access
4 Uranium marketing annual report von USA / Energy Information Administration Washington, D.C : Energy Information Administration, 2004- E-Zeitschrift Open Access