Spectroscopic properties of uranium compounds : by G.H. Dieke and A.B.F. Duncan. Dieke, Gerhard Heinrich, 1901-1965. Duncan, Albert Benjamin Ford, 1903- joint author. Uranium compounds. Spectrum analysis. QC464.U7 D5 546.791 DIS Includes index. Bibliography: p. 269-280. New York : McGraw-Hill, 1949. 1949. 1949 Text xviii, 290 p. : eng National nuclear energy series. Manhattan Project technical section. Division III [Special Separations Project] v. 2