TY  - RPRT
TI  - Geographic map of the northwestern Rub' Al Khali quadrangle, Kingdom of Saudi Arabia
AU  - Richard A. Bramkamp
AU  - Leon F. Ramirez
PY  - 1959
DO  - 10.3133/i213b
UR  - https://pubs.usgs.gov/publication/i213B
ID  - i213B
ER  -