TY  - RPRT
TI  - Magnetic surveys in the Hajrah-Hamdah area, including a ground survey of the Hajr ancient mine, Kingdom of Saudi Arabia
AU  - H. Richard Blank
AU  - Maher A. Bazzari
PY  - 1981
DO  - 10.3133/ofr811216
UR  - https://pubs.usgs.gov/publication/ofr811216
ID  - ofr811216
ER  -