Direction and coordination of supervision current practices of city superintendents
| 主要作者: | |
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| 格式: | 图书 | 
| 语言: | English | 
| 出版: | Bloomington, Ill.
          Public school publishing co.
    
        [c1930]. | 
| 丛编: | Northwestern university, Contributions to education, School of education series, no.3 | 
| 主题: |