TY  - RPRT
TI  - Significant deposits of gold, silver, copper, lead, and zinc in the United States
AU  - K. R. Long
AU  - J.H. DeYoung
AU  - S. Ludington
PY  - 2000
DO  - 10.2113/gsecongeo.95.3.629
UR  - https://pubs.usgs.gov/publication/70022329
ID  - 70022329
ER  -