Issued also as Thesis--Helsingfors. / Includes bibliographical references.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/646022719 |
| Date | January 1951 |
| Creators | Takala, Martti. |
| Publisher | Helsinki [Suomalainen Tiedeakatemia] |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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