TY  - RPRT
TI  - Geology of the Cuarenta mercury district, State of Durango, Mexico
AU  - David Gallagher
AU  - Raphael. Perez Siliceo
PY  - 1946
DO  - 10.3133/b946f
UR  - https://pubs.usgs.gov/publication/b946F
ID  - b946F
ER  -