1. A study of the present social status of a group of adults who, when they were in elementary schools, were classified as mentally deficient;Bailer;Genet. Psychol. Monogr.,1936
2. Some aetiological problems in mental deficiency;Berg;Brit. med. J.,1959
3. Ability and accomplishment of persons earlier judged mentally deficient;Charles;Genet. Psychol. Monogr.,1953
4. Schizophrenic syndrome in childhood. Progress report of a working party;Creak;Cerebr. Palsy Bull.,1961