Thesis (doctoral)--Rijksuniversiteit te Utrecht, 1964.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/50547443 |
| Date | January 1964 |
| Creators | Wiersema, Pieter Hendrik. |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
| Source | Online version |
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