APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

National Council of Teachers of Mathematics, et al. Teaching and Learning Mathematics in the 1990s. NCTM, 1990.