United States. Bureau of Mines. (1939). Progress reports, Metallurgical Division: 30, Electrometallurgical investigations, recovery of potassium sulphate and alumina from alunite by fusion with boric acid. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Progress Reports, Metallurgical Division: 30, Electrometallurgical Investigations, Recovery of Potassium Sulphate and Alumina from Alunite by Fusion with Boric Acid. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Progress Reports, Metallurgical Division: 30, Electrometallurgical Investigations, Recovery of Potassium Sulphate and Alumina from Alunite by Fusion with Boric Acid. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.