XX Bienial World Congress. Athens, 23-27 May 1976.
Card's contents:526,330 BIENNIAL XX Bienial World Congress. Athens, 23-27 May 1976. International College of Surgeons, President N.C.Louros, Abstracts of papers presented, Amsterdam 1976 Excerpta Medica 8° s, nib, 8, 178, Excerpta Medica, International Congress Ser, nr 389