TY  - RPRT
TI  - Ground-water resources investigation in the Amran Valley, Yeman Arab Republic
AU  - G. Chase Tibbitts
AU  - James Aubel
PY  - 1980
DO  - 10.3133/ofr80774
UR  - https://pubs.usgs.gov/publication/ofr80774
ID  - ofr80774
ER  -