Bradley, J. (2003). The open classroom: Distance learning in and out of schools. Kogan Page.
Chicago-referens (17:e uppl.)Bradley, Jo. The Open Classroom: Distance Learning in and Out of Schools. Kogan Page, 2003.
MLA-referens (9:e uppl.)Bradley, Jo. The Open Classroom: Distance Learning in and Out of Schools. Kogan Page, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.