TY  - RPRT
TI  - A review of regional mineral resource assessment methods
AU  - D.A. Singer
AU  - D.L. Mosier
PY  - 1981
DO  - 10.2113/gsecongeo.76.5.1006
UR  - https://pubs.usgs.gov/publication/70011850
ID  - 70011850
ER  -