TY  - RPRT
TI  - Geologic map of the Yemen Arab Republic (San'a')
AU  - M. J. Grolier
AU  - W.C. Overstreet
PY  - 1978
DO  - 10.3133/i1143b
UR  - https://pubs.usgs.gov/publication/i1143B
ID  - i1143B
ER  -