Proefschrift--Leiden. / Summary in German. Includes bibliographical references.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/551246722 |
| Date | January 1960 |
| Creators | Naeff, J. P. |
| Publisher | Gorinchem, J. Noorduijn, |
| Source Sets | OCLC |
| Language | Dutch |
| Detected Language | English |
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