%A Brown, Kenneth E. %A Snader, Daniel W. %A United States. Dept. of Health, Education, and Welfare %A National Council of Teachers of Mathematics %T Inservice education of high school mathematics teachers : report of a conference under the joint auspices of the U. S. Department of Health, Educatinon, and Welfare and the National Council of Teachers of Mathematics, Washington, March 17-19, 1960 %I In-house reproduction %D 1961 %S Bulletin / Department of the Interior, Bureau of Education %V 1961, no. 10 %U https://ci.nii.ac.jp/ncid/BA61694880