Kramer, D. A. (1983). Economic and technical evaluation of the sulfurous acid-caustic purification process for producing alumina from kaolinitic clay. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of Mines.MLA Citation
Kramer, Deborah A. Economic And Technical Evaluation of the Sulfurous Acid-caustic Purification Process for Producing Alumina From Kaolinitic Clay. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of Mines, 1983.
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