Nicholson, R. (1989). School management: The role of the secondary headteacher. Kogan.
Chicago-referens (17:e uppl.)Nicholson, Richard. School Management: The Role of the Secondary Headteacher. London: Kogan, 1989.
MLA-referens (9:e uppl.)Nicholson, Richard. School Management: The Role of the Secondary Headteacher. Kogan, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.