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Titel : | Rock Stratigraphy of the Silurian System in Northeastern and Northwestern Illinois / H.B. Willman
| Hauptautor : | Willman, H.B.
| Umfang : | 55 S. : 10 Figs.
| UDC : | 56
| In : | Illinois State Geological Survey. -- 1973. C.479
| Note : | separát
| | bibl.
| Citováno jako : | WILLMAN, H.B. Rock Stratigraphy of the Silurian System in Northeastern... Illinois Stat. Geol. Surv. 1973, C.479, 55 S., 10 Figs.
| Kl.slova : | Silurian |
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