The conservation story, a background for understanding today's crisis
Saved in:
| OCLC: | 751490 |
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| 主要作者: | |
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| 语言: | English |
| 出版: |
Columbus, Ohio,
American Education Publications,
c1969.
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| 丛编: | Unit study books.
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| 主题: | |
| 格式: | Monograph Note that CRL will digitize material from the collection when copyright allows. |