TY  - RPRT
TI  - Report on publications acitivities, Directorate General for Mineral Resources, Jiddah, Saudi Arabia
AU  - Neil W. Maxfield
AU  - Robert B. Fraser
PY  - 1975
DO  - 10.3133/ofr75271
UR  - https://pubs.usgs.gov/publication/ofr75271
ID  - ofr75271
ER  -