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| Title : | The Ordovician rocks between Collon (Co. Louth) and Grangegeeth (Co. Meath) / John C. Harper
| | Main author : |  Harper, John C.
| | Extent : | S. 85-128 : 2 Figs, 4 Pls. tbl, mapa.
| | UDC : | 56
| | In : | Scientific Proceedings of the Royal Dublin Society. -- 1952, Vol. 26, No. 4/5.
| | Note : | separát
| | bibl.
| | Citováno jako : | HARPER, John C. The Ordovician rocks Collon (Co. Louth)... Scient. Proceed. Royal Dublin Soc. 1952, Vol. 26, No. 4/5, S. 85-128 : 2 Figs., 4 Pls., tbl. mapa.
| | Kl.slova : | Dicranograptus clingani-Pleurograptus linearis age |
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