TY  - RPRT
TI  - Reconnaissance geology of the Jabal al Hajrah 7.5-minute Quadrangle, Kingdom of Saudi Arabia
AU  - R. G. Worl
PY  - 1981
DO  - 10.3133/ofr811218
UR  - https://pubs.usgs.gov/publication/ofr811218
ID  - ofr811218
ER  -