Direction and coordination of supervision current practices of city superintendents
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Bloomington, Ill.
Public school publishing co.
[c1930].
|
| Cyfres: | Northwestern university, Contributions to education, School of education series, no.3
|
| Pynciau: |