APA (7th ed.) Citation

Pelgrum, W. J., & Plomp, T. (1991). The use of computers in education worldwide : results from the IEA 'Computers in education' survey in 19 educational systems / Willem J. Pelgrum, Tjeerd Plomp: Results from the IEA 'Computers in education' survey in 19 educational systems. Pergamon for the International Association for Educational Achievement.

Chicago Style (17th ed.) Citation

Pelgrum, Willem J., and Tjeerd Plomp. The Use of Computers in Education Worldwide : Results from the IEA 'Computers in Education' Survey in 19 Educational Systems / Willem J. Pelgrum, Tjeerd Plomp: Results from the IEA 'Computers in Education' Survey in 19 Educational Systems. Oxford: Pergamon for the International Association for Educational Achievement, 1991.

MLA (9th ed.) Citation

Pelgrum, Willem J., and Tjeerd Plomp. The Use of Computers in Education Worldwide : Results from the IEA 'Computers in Education' Survey in 19 Educational Systems / Willem J. Pelgrum, Tjeerd Plomp: Results from the IEA 'Computers in Education' Survey in 19 Educational Systems. Pergamon for the International Association for Educational Achievement, 1991.

Warning: These citations may not always be 100% accurate.