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Sandstone-covered Missouri Flint clay pit
Brief description of pit found and worked near Warrentown, Mo.
Sandstone-covered Missouri Flint clay pit
Brief description of pit found and worked near Warrentown, Mo.
Sandstone-covered Missouri Flint clay pit
Am Cer Soc -- Bul
Keller, W.D. (Autor:in)
1938
Aufsatz (Zeitschrift)
Englisch
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Sandstone-covered Missouri Flint clay pit
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