Windham, D. M. (1990). Improving the Efficiency of Educational Systems Project.: Indicators of educational effectiveness and efficiency. IEES.
Chicago-Zitierstil (17. Ausg.)Windham, Doughlas M. Improving the Efficiency of Educational Systems Project.: Indicators of Educational Effectiveness and Efficiency. Tallahassee, Fla., USA: IEES, 1990.
MLA-Zitierstil (8. Ausg.)Windham, Doughlas M. Improving the Efficiency of Educational Systems Project.: Indicators of Educational Effectiveness and Efficiency. IEES, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.