APA (7th ed.) Citation

Cooney, T. J., & Hirsch, C. R. (1990). Teaching and learning mathematics in the 1990s. National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

Cooney, Thomas J., and Christian R. Hirsch. Teaching and Learning Mathematics in the 1990s. Reston, Va.: National Council of Teachers of Mathematics, 1990.

MLA (9th ed.) Citation

Cooney, Thomas J., and Christian R. Hirsch. Teaching and Learning Mathematics in the 1990s. National Council of Teachers of Mathematics, 1990.