TY  - RPRT
TI  - Index map of 1:500,000-scale geologic and geographic maps of the Arabian Peninsula
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1980
DO  - 10.3133/ofr81474
UR  - https://pubs.usgs.gov/publication/ofr81474
ID  - ofr81474
ER  -