Williams, P. R. C. (1979). Planning teacher demand and supply. UNESCO, International Institute for Educational Planning.
Chicago-Zitierstil (17. Ausg.)Williams, Peter R. C. Planning Teacher Demand and Supply. Paris: UNESCO, International Institute for Educational Planning, 1979.
MLA-Zitierstil (9. Ausg.)Williams, Peter R. C. Planning Teacher Demand and Supply. UNESCO, International Institute for Educational Planning, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.