TY  - RPRT
TI  - Summary of activities, U.S. Geological Survey-Saudi Arabian project, 1950 to 1975
AU  - Thor H. Kiilsgaard
PY  - 1975
DO  - 10.3133/ofr75492
UR  - https://pubs.usgs.gov/publication/ofr75492
ID  - ofr75492
ER  -