APA (7th ed.) Citation

Howson, A. G., Keitel, C., & Kilpatrick, J. (1981). Curriculum development in mathematics. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Howson, Albert G., Christine Keitel, and Jeremy Kilpatrick. Curriculum Development in Mathematics. Cambridge: Cambridge Univ. Press, 1981.

MLA (9th ed.) Citation

Howson, Albert G., et al. Curriculum Development in Mathematics. Cambridge Univ. Press, 1981.