Não informado. (1972). Oral History. University of Essex, Sociology Department.
Chicago-viite (17. p.)Não informado. Oral History. Colchester, Inglaterra: University of Essex, Sociology Department, 1972.
MLA-viite (8. p.)Não informado. Oral History. University of Essex, Sociology Department, 1972.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.