TY  - RPRT
TI  - Topographic and geologic map of the Sain Alto mercury district, Municipio de Sain Alto, State of Zacatecas, Mexico
AU  - Rafael Perez Siliceo
AU  - David Gallagher
PY  - 1966
DO  - 10.3133/ofr66124
UR  - https://pubs.usgs.gov/publication/ofr66124
ID  - ofr66124
ER  -