TY  - RPRT
TI  - Basement and basement-cover relation map of the Appalachian orogen in the United States
AU  - Avery A. Drake
AU  - L. M. Hall
AU  - A. E. Nelson
PY  - 1988
DO  - 10.3133/i1655
UR  - https://pubs.usgs.gov/publication/i1655
ID  - i1655
ER  -