TY  - RPRT
TI  - Reconnaissance geologic map of the Jabal Zain Quadrangle, sheet 20/44A, Kingdom of Saudi Arabia
AU  - Maurice R. Brock
PY  - 1983
DO  - 10.3133/ofr83639
UR  - https://pubs.usgs.gov/publication/ofr83639
ID  - ofr83639
ER  -