Riabchikov, D. I. The analytical chemistry of thorium / by D. I. Ryabchikov and E. K. Golbraikh ; Translated by A. D. Norris - Oxford Pergamon Press, 1963 - xiii, 316 p. : diagrs., tables ; 23 cm. - International series of monographs on analytical chemistry, v.10 . p. 242-311 LCCN: 63-010065 Subjects--Topical Terms: Thorium--Analysis