The problem of mathematics in secondary education. - National Education Association of the United States. Commission on the Reorganization of Secondary Education (Washington, Govt. print. off., 1920)
At head of title: Department of the interior. Bureau of education ...
Copy 1 bound with: Bulletin / United States. Bureau of Education, 1920, no. 2-1920, no. 12, subsequent to publication.
Keywords: Mathematics -- Study and teaching (Secondary)