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02h0056223 20140418082426.0 s1957 dcuab fr |000|||eng | CNY200.00 NGL a363 ; a431.8 Sheridan, Douglas M. Geology and beryl deposits of the Peerless pegmatite, Pennington County, South Dakota / by Douglas M. Sheridan ... [et al.]. Washington, D.C. : Government Printing Office, 1957. iii, 47 p. : ill., maps ; 29 cm. + 4 maps. Professional paper / Department of the Interior, United States Geological Survey ; 297-A Beryl ; Mines and mineral resources ; Pegmatites South Dakota ; Pennington County. ; South Dakota ; Pennington County. ; South Dakota ; Pennington County.Zinc ores ; Tennessee ; Knox County. South Dakota Pennington County. Professional paper / Department of the Interior, United States Geological Survey ; 297-A. aCN bNGL 010001 P 254.2 P94 v297-A ; rCNY200.00 ; h1 whx006