title: Identifying the disabled: concepts and methods in the measurement of disability. By Lawrence D. Haber, 1967.
mesh_terms: D003625:Data Collection / Q000266:history; D006233:Persons with Disabilities / Q000266:history*; D006306:Health Surveys; D049673:History, 20th Century; D006801:Humans; D012943:Social Security; D014481:United States