TY  - RPRT
TI  - United States Geological Survey Yearbook, fiscal year 1980
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1981
DO  - 10.3133/70039034
UR  - https://pubs.usgs.gov/publication/70039034
ID  - 70039034
ER  -