APA (7th ed.) Citation

National Council of Teachers of Mathematics, Suydam, M. N., & Reys, R. E. (1978). Developing computational skills. NCTM.

Chicago Style (17th ed.) Citation

National Council of Teachers of Mathematics, Marilyn N. Suydam, and Robert E. Reys. Developing Computational Skills. Reston, VA: NCTM, 1978.

MLA (9th ed.) Citation

National Council of Teachers of Mathematics, et al. Developing Computational Skills. NCTM, 1978.