TY  - RPRT
TI  - Preliminary geologic map of North Yemen, region north of San'a, Yemen Arab Republic Landsat-1 image No. 1189-06555
AU  - Maurice J. Grolier
AU  - William C. Overstreet
PY  - 1976
DO  - 10.3133/ofr76741
UR  - https://pubs.usgs.gov/publication/ofr76741
ID  - ofr76741
ER  -