Commonwealth Secretariat. (1980). Commonwealth directory of qualifications and courses in educational administration (3rd ed.). Commonwealth Secretariat.
Chicago-referens (17:e uppl.)Commonwealth Secretariat. Commonwealth Directory of Qualifications and Courses in Educational Administration. 3rd ed. London: Commonwealth Secretariat, 1980.
MLA-referens (9:e uppl.)Commonwealth Secretariat. Commonwealth Directory of Qualifications and Courses in Educational Administration. 3rd ed. Commonwealth Secretariat, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.