I 476 plate 3 - USGS · Parker, J. M. , 3d, 1963, Geologic setting of the Hamme tungsten district,...
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I 476 plate 3 - USGS · Parker, J. M. , 3d, 1963, Geologic setting of the Hamme tungsten district, North Carolina and Virginia: ... Hurst, V. J., and Otwell, W. L. , 1964,