Owens, D. T., Wagner, S., & National Council of Teachers of Mathematics. Research Interpretation Project. (1993). Research ideas for the classroom: Middle grades mathematics. Macmillan.
Cita Chicago Style (17a ed.)Owens, Douglas T., Sigrid Wagner, y National Council of Teachers of Mathematics. Research Interpretation Project. Research Ideas for the Classroom: Middle Grades Mathematics. New York: Macmillan, 1993.
Cita MLA (9a ed.)Owens, Douglas T., et al. Research Ideas for the Classroom: Middle Grades Mathematics. Macmillan, 1993.
Precaución: Estas citas no son 100% exactas.