Le Van, D. C. (1971). Directory of the mineral industry in Virginia, 1971. Virginia Division of Mineral Resources.
Chicago Style (17th ed.) CitationLe Van, D. C. Directory of the Mineral Industry in Virginia, 1971. Charlottesville: Virginia Division of Mineral Resources, 1971.
MLA (9th ed.) CitationLe Van, D. C. Directory of the Mineral Industry in Virginia, 1971. Virginia Division of Mineral Resources, 1971.
Warning: These citations may not always be 100% accurate.