TY  - BOOK
TI  - U.S. Geological Survey Bulletin
PY  - 1883///
CY  - Washington
PB  - Government Printing Office
KW  - GEOLOGÍA
KW  - PUBLICACIONES PERIODICAS
UR  - https://pubs.usgs.gov/browse/Report/USGS%20Numbered%20Series/Bulletin/
ER  -