Cullingford, C. (1991). The inner world of the school: Children's ideas about schools. Cassell.
Chicago-viite (17. p.)Cullingford, Cedric. The Inner World of the School: Children's Ideas About Schools. London: Cassell, 1991.
MLA-viite (8. p.)Cullingford, Cedric. The Inner World of the School: Children's Ideas About Schools. Cassell, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.