TY  - RPRT
TI  - Trends in tungsten, molybdenum, and cobalt production and trade in China
AU  - Pui-Kwan Tse
PY  - 2003
DO  - 10.3133/ofr0363
UR  - https://pubs.usgs.gov/publication/ofr0363
ID  - ofr0363
ER  -