| Title | Researches on the flora of the coal-balls from the "Finefrau-Nebenbank" horizon in the province of Limburg (the Netherlands) | Translate |
| Author | Koopmans, Reitze Gerben. | Translate |
| Type | Book | Translate |
| Imprint | Heerlen : Penners | Translate |
| Year | 1928. | Translate |
| Technique | illustrations | Translate |
| Size | 32 cm. | Translate |
| Annotation | Geologisch Bureau voor het Nederlandse mijngebied. Proefschrift Utrecht. Also available in online version. | Translate |
| Location | Universiteitsbibliotheek Utrecht | Translate |
| Call number | MAG: Diss Utrecht qu 1928 koo | Translate |
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