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Edité par United States Geological Survey., 1945
Vendeur : Eryops Books, Stephenville, TX, Etats-Unis
No Binding. Etat : Very Good. Large folded sheet (with 5 maps showing the thicknesses of the Jurassic, Triassic - Permian, Quadrant Quartzite - Tensleep Sandstone, Amsden Formation, Big Snowy Group; a map showing the distribution of rocks overlain by the Ellis Formation; a cross-section; a table summarizing formation thicknesses; a discussion of the geology; and references cited ); ex-corporate library; in very good condition. Map.