TY  - RPRT
TI  - Map showing major fold axes, satellite-imagery lineaments, elongate aeroradioactivity anomalies, and lines of structural discontinuity, southwestern Pennsylvania and vicinity
AU  - R. P. Briggs
AU  - W. R. Kohl
PY  - 1976
DO  - 10.3133/mf815
UR  - https://pubs.usgs.gov/publication/mf815
ID  - mf815
ER  -