APA Edition Citation

Husen, T. (1967). International study of achievement in mathematics. John Wiley.

Chicago Edition Citation

Husen, Torsten. International Study of Achievement in Mathematics. John Wiley, 1967.

MLA Edition Citation

Husen, Torsten. International Study of Achievement in Mathematics. John Wiley, 1967.

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