TY  - RPRT
TI  - Economic drivers of mineral supply
AU  - Lorie A. Wagner
AU  - Daniel E. Sullivan
AU  - John L. Sznopek
PY  - 2003
DO  - 10.3133/ofr02335
UR  - https://pubs.usgs.gov/publication/ofr02335
ID  - ofr02335
ER  -