Genetics today : proceedings of the XI International Congress of Genetics, The Hague, The Netherlands, September 1963 / edited by S.J. Geerts. International Congress of Genetics (11th : 1963 : Hague, Netherlands) Geerts, S. J. (Sipke Johannes), 1916- Human genetics Congresses. Genetics Congresses. Genetics Congresses. 575.1 GEG "A Pergamon Press Book." Vols. 2-3 have imprint: Oxford, Pergamon Press. Includes bibliographical references and index. New York : Macmillan, 1963-65. 1963-65. 1963 Text 3 v. : eng