Carr-Hill, R. A. (1988). The information base for the planning of the diversified educational field. International Institute for Educational Planning.
Chicago-referens (17:e uppl.)Carr-Hill, R. A. The Information Base for the Planning of the Diversified Educational Field. Paris: International Institute for Educational Planning, 1988.
MLA-referens (9:e uppl.)Carr-Hill, R. A. The Information Base for the Planning of the Diversified Educational Field. International Institute for Educational Planning, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.