TY  - RPRT
TI  - Preliminary report on the ancient mines and mineral occurrences in northeastern Hijaz quadrangle 205 and the southwest part of Wadi Ar Rimah quadrangle 206, Saudi Arabia
AU  - C. L. Hummel
AU  - Abdullah Ankary
AU  - Hashim Hakim
PY  - 1970
DO  - 10.3133/ofr70168
UR  - https://pubs.usgs.gov/publication/ofr70168
ID  - ofr70168
ER  -