APA (7e ed.) Bronvermelding

Windham, D. M. (1990). Improving the Efficiency of Educational Systems Project.: Indicators of educational effectiveness and efficiency. IEES.

Chicago (17e ed.) Bronvermelding

Windham, Doughlas M. Improving the Efficiency of Educational Systems Project.: Indicators of Educational Effectiveness and Efficiency. Tallahassee, Fla., USA: IEES, 1990.

MLA (8e ed.) Bronvermelding

Windham, Doughlas M. Improving the Efficiency of Educational Systems Project.: Indicators of Educational Effectiveness and Efficiency. IEES, 1990.