Elementary School Mathematics Productivity in Twelve Countries.

MLA

Walberg, Herbert J., et al. “Elementary School Mathematics Productivity in Twelve Countries.” British Educational Research Journal, vol. 12, no. 3, Oct. 1986, pp. 237–48. EBSCOhost, https://doi.org/10.1080/0141192860120302.

APA

Walberg, H. J., Harnisch, D. L., & Shiow-Ling Tsai. (1986). Elementary School Mathematics Productivity in Twelve Countries. British Educational Research Journal, 12(3), 237–248. https://doi.org/10.1080/0141192860120302

Chicago

Walberg, Herbert J., Delwyn L. Harnisch, and Shiow-Ling Tsai. 1986. “Elementary School Mathematics Productivity in Twelve Countries.” British Educational Research Journal 12 (3): 237–48. doi:10.1080/0141192860120302.