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- American Educational Research Association9
- Monroe, Walter Scott, 1882-19617
- Alexander, Carter, 1881-19656
- Unesco6
- United States. Bureau of Education. Library Division5
- United States. Office of Education5
- Burnham, William H. (William Henry), 1855-19414
- Buttlar, Lois, 1934-4
- Clark University (Worcester, Mass.)4
- Educational Resources Information Center (U.S.)4
- International Bureau of Education4
- Kokuritsu Kyōiku Kenkyūjo (Japan)4
- University of Illinois (Urbana-Champaign campus). Bureau of Educational Research4
- Woodbury, Marda4
- Blanco y Sánchez, Rufino, 1861-19363
- Broudy, Harry S.3
- Centro de Documentación e Información Pedagógicas (Cuba)3
- Dugdale, Kathleen, 1897-3
- France. Ministère de l'instruction publique3
- Freed, Melvyn N.3