TY  - RPRT
TI  - Scientific and technical, spatial, and bibliographic data bases of the U.S. Geological Survey, 1979
AU  - the Office of the Data Base Administrator
PY  - 1979
DO  - 10.3133/cir817_1979
UR  - https://pubs.usgs.gov/publication/cir817_1979
ID  - cir817_1979
ER  -