Educational exhibits, how to prepare and use them; a manual for extension workers
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| OCLC: | 16741189 |
|---|---|
| 主要作者: | |
| 語言: | English |
| 出版: |
Washington,
U.S. Govt. Print. Off.,
1948.
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| 叢編: | Miscellaneous publication (United States. Dept. of Agriculture).
no. 634. |
| 主題: | |
| 格式: | Government Document Monograph Note that CRL will digitize material from the collection when copyright allows. |