Proefschrift--Natuurwetenschappen--Utrecht, 1981. / Bibliogr. p. 287-293.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/464235269 |
| Date | January 1900 |
| Creators | De Valk, Everardus Jacobus. |
| Publisher | Utrecht : Laboratory of palaeobotany and palynology, State university of Utrecht, |
| Source Sets | OCLC |
| Language | Undetermined |
| Detected Language | Unknown |
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