Geological Survey (U.S.) International Symposium & Horton, J. W. J. (2022). Geologic map of the South Boston 30 X 60 minute quadrangle, Virginia and North Carolina. U.S. Department of the Interior, U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Geological Survey (U.S.) International Symposium und J. Wright Jr Horton. Geologic Map of the South Boston 30 X 60 Minute Quadrangle, Virginia and North Carolina. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2022.
MLA-Zitierstil (9. Ausg.)Geological Survey (U.S.) International Symposium und J. Wright Jr Horton. Geologic Map of the South Boston 30 X 60 Minute Quadrangle, Virginia and North Carolina. U.S. Department of the Interior, U.S. Geological Survey, 2022.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.