The co-operative system of education: a reprint of bulletin no. 37, series of 1916, U. S. Bureau of education, with additions /
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
[Cincinnati] :
University of Cincinnati,
1925.
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| 丛编: | University of Cincinnati studies ;
ser. 2, v. 11, pt. 1. |
| 主题: |