TY  - RPRT
TI  - Geologic names of the United States through 1975
AU  - Roger Warren Swanson
AU  - M.L. Hubert
AU  - G.W. Luttrell
AU  - V.M. Jussen
PY  - 1981
DO  - 10.3133/b1535
UR  - https://pubs.usgs.gov/publication/b1535
ID  - b1535
ER  -