TY  - RPRT
TI  - Census county subdivisions, 1980, Llano, Texas
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1985
DO  - 10.3133/ofr84185
UR  - https://pubs.usgs.gov/publication/ofr84185
ID  - ofr84185
ER  -