APA (7th ed.) Citation

Stigler, J. W., & Hiebert, J. (1999). The teaching gap: Best ideas from the world's teachers for improving education in the classroom. Free Press.

Chicago Style (17th ed.) Citation

Stigler, James W., and James Hiebert. The Teaching Gap: Best Ideas from the World's Teachers for Improving Education in the Classroom. New York: Free Press, 1999.

MLA (9th ed.) Citation

Stigler, James W., and James Hiebert. The Teaching Gap: Best Ideas from the World's Teachers for Improving Education in the Classroom. Free Press, 1999.