Introduction to education
| Prif Awdur: | |
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| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York, London
D. Appleton-Century company, incorporated
[©1934]
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| Cyfres: | Half-title: Appleton series in supervision and teaching, ed. by A. S. Barr and W. H. Burton
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| Pynciau: |