The supervision of elementary subjects
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York, London
D. Appleton and company
[c1929].
|
| Cyfres: | Half-title: Appleton series in supervision and teaching, ed. by A.S. Barr and W.H. Burton
|
| Pynciau: |