1. Atkinson J (1971) A handbook for interviewers: a manual for social survey interviewing practice and procedures on structured interviewing. 2nd ed. HMSO Social Survey Division, London
2. Bart PE (1974) The sociology of depression. In: Roman PM, Trice HM (eds) Explorations in psychiatric sociology. FA Davis, Philadelphia
3. Beck AT (1967) Depression: clinical, experimental and theoretical aspects. Staples Press, London
4. Becker E (1964) The revolution in psychiatry. Free Press, New York
5. Benfari RC, Beiser M, Leighton AM (1972) Some dimensions of psychoneurotic behaviour in an urban sample. J Nerv Ment Dis 155: 77?90