APA (7th ed.) Citation

National Council of Teachers of Mathematics, Fennell, F. M., & Speer, W. R. (2013). Defining mathematics education: Presidential yearbook selections 1926-2012 : seventy-fifth yearbook. National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

National Council of Teachers of Mathematics, Francis M. Fennell, and William R. Speer. Defining Mathematics Education: Presidential Yearbook Selections 1926-2012 : Seventy-fifth Yearbook. Reston, VA: National Council of Teachers of Mathematics, 2013.

MLA (9th ed.) Citation

National Council of Teachers of Mathematics, et al. Defining Mathematics Education: Presidential Yearbook Selections 1926-2012 : Seventy-fifth Yearbook. National Council of Teachers of Mathematics, 2013.