On time to the doctorate a study of the increased time to complete doctorates in science and engineering /
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| 主要作者: | |
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| 企业作者: | |
| 其他作者: | , |
| 格式: | 电子 电子书 |
| 语言: | 英语 |
| 出版: |
Washington, D.C. :
National Academy Press,
1990.
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| 主题: | |
| 在线阅读: | An electronic book accessible through the World Wide Web; click to view |
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