The Universal decimal classification a programmed instruction course
| 主要作者: | |
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
[College Park, Md.]
School of Library and Information Services, University of Maryland
[c1970]
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| 丛编: | Federation internationale de documentation
FID467 |
| 主题: |