Thesis--University of Helsinki. / Bibliography: p. [85]-87.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/551676369 |
Date | January 1956 |
Creators | Pessi, Yrjö. |
Publisher | Helsinki, |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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