International Association for the Evaluation of Educational Achieveme, Pelgrum, W. J., & Plomp, T. (1993). The IEA study of computers in education : implementation of an innovation in 21 education systems / edited by Willem J. Pelgrum and Tjeerd Plomp: Implementation of an innovation in 21 education systems. Pergamon Press.
Chicago Style (17th ed.) CitationInternational Association for the Evaluation of Educational Achieveme, Willem J. Pelgrum, and Tjeerd Plomp. The IEA Study of Computers in Education : Implementation of an Innovation in 21 Education Systems / Edited by Willem J. Pelgrum and Tjeerd Plomp: Implementation of an Innovation in 21 Education Systems. Oxford: Pergamon Press, 1993.
MLA (9th ed.) CitationInternational Association for the Evaluation of Educational Achieveme, et al. The IEA Study of Computers in Education : Implementation of an Innovation in 21 Education Systems / Edited by Willem J. Pelgrum and Tjeerd Plomp: Implementation of an Innovation in 21 Education Systems. Pergamon Press, 1993.