APA (7th ed.) Citation

Travers, K. J., Westbury, I., Robitaille, D., & Garden, R. (1989). The IEA study of mathematics. Pergamon Press.

Chicago Style (17th ed.) Citation

Travers, Kenneth J., Ian Westbury, D.F Robitaille, and R.A Garden. The IEA Study of Mathematics. Oxford: Pergamon Press, 1989.

MLA (9th ed.) Citation

Travers, Kenneth J., et al. The IEA Study of Mathematics. Pergamon Press, 1989.