The supervision of elementary subjects
| Autor principal: | |
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| Formato: | Libro |
| Lenguaje: | English |
| Publicado: |
New York, London
D. Appleton and company
[c1929].
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| Colección: | Half-title: Appleton series in supervision and teaching, ed. by A.S. Barr and W.H. Burton
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| Materias: |