APA (7th ed.) Citation

Greer, G. B., & Mulhern, G. (1989). New directions in mathematics education. Routledge.

Chicago Style (17th ed.) Citation

Greer, G. B., and Gerry Mulhern. New Directions in Mathematics Education. London ; New York: Routledge, 1989.

MLA (9th ed.) Citation

Greer, G. B., and Gerry Mulhern. New Directions in Mathematics Education. Routledge, 1989.

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