Thesis--Helsingfors. / Summary in English.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/649867482 |
| Date | January 1963 |
| Creators | Virrankoski, Pentti. |
| Source Sets | OCLC |
| Language | Finnish |
| Detected Language | Finnish |
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