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International Standard Industrial Classification of All Economic Activties (ISIC), Rev. 4 /
| 語言: | Undetermined |
|---|---|
| 出版: |
New York :
ESA,UN ,
2008.
|
| 主題: |
University of Kerala
| 索引號: |
ESA |
|---|---|
| 復印件 | Live Status Unavailable |