Analyses of clay, shale, and related materials, northern counties
By: [by] James L. Colver, Howard P. Hamlin and Robert S. Wood in cooperation with U.S. Bureau of Mines
Series: Virginia. Division of Mineral Resources. Mineral resources report -- no. 2; Mineral resources report (Virginia. Division of Mineral Resources) -- no. 2.
Published: 1961
Place of publication: Charlottesville
Language: eng
Number of pages: 194
Subjects: Clay; Shale; Analysis