Author/Creator
- Unesco36
- Great Britain. Board of Education28
- University of the State of New York27
- National Council of Teachers of English24
- Bradford H. Gray Collection in the History of Social Thought (Beinecke Rare Book and Manuscript Library)22
- Great Britain19
- Centre de linguistique appliquée de Dakar17
- Historical Association (Great Britain)16
- National Council for the Social Studies16
- Sugimoto, Tsutomu, 1927-16
- British Council15
- Centre for Information on Language Teaching and Research14
- Denver (Colo.). Board of Education14
- Food and Agriculture Organization of the United Nations14
- Oregon. Office of Superintendent of Public Instruction14
- Society for the Promotion of Engineering Education (U.S.)14
- Kokusai Kōryū Kikin13
- Organisation for Economic Co-operation and Development13
- Riewert Tode Collection of German Student Movements and Counter-Culture13
- Harris, William Torrey, 1835-190912