APA (7th ed.) Citation

Sierpinska, A., Kilpatrick, J., Balacheff, N., Howson, A. G., Sfard, A., & Steinbring, H. (1993). What is research in mathematics education, and what are its results?

Chicago Style (17th ed.) Citation

Sierpinska, Anna, Jeremy Kilpatrick, Nicolas Balacheff, A. Geoffrey Howson, Anna Sfard, and Heinz Steinbring. What Is Research in Mathematics Education, and What Are Its Results? 1993.

MLA (8th ed.) Citation

Sierpinska, Anna, et al. What Is Research in Mathematics Education, and What Are Its Results? 1993.