TY  - RPRT
TI  - Bedrock structural controls on the occurrence of sinkholes and springs in the Northern Great Valley Karst, Virginia and West Virginia
AU  - Daniel H. Doctor
AU  - David J. Weary
AU  - Randall C. Orndorff
AU  - George E. Harlow
AU  - Mark D. Kozar
AU  - David L. Nelms
PY  - 2008
DO  - 10.1061/9780784410035
UR  - https://pubs.usgs.gov/publication/70195812
ID  - 70195812
ER  -