Ciba Foundation symposium on the chemistry and biology of purines / editors for the Ciba Foundation: G. E. W. Wolstenholme and Cecilia M. O'Connor ; with 124 illustrations and structural formulae. Ciba Foundation. Wolstenholme, G. E. W. (Gordon Ethelbert Ward) O'Connor, Cecilia M. (Cecilia Mary), 1927- ed. Purines. QP801.P8 C5 1957a 547.596 CIS Includes bibliographical references and index. London : J. & A. Churchill, 1957. 1957. 1957 Text xii, 327 p. : eng