Ryabchikov, D.I. The Analytical chemistry of thorium D.I. Ryabchikov and E.K. GolBraikh Translated by A.D. Norrist - Oxford: Pergamon Press, 1963 - xiii, 316p.: ill V.10. - (International series of monographs on analytical chemistry, v.10) . Dewey Class. No.: 543 / R99A