Isotopes in chemistry, by J. F. Duncan and G. B. Cook. Duncan, J. F. (James Francis), 1921- Cook, G. B. (Gerald Bernard), 1921- joint author. Isotopes. QD466 .D85 547.1388 DUI Includes bibliographies. Oxford, Clarendon P., 1968. 1968. 1968 Text xv, 258 p. eng