TY  - RPRT
TI  - International strategic mineral issues summary report– Tungsten
AU  - Antony B. T. Werner
AU  - W. David Sinclair
AU  - Earle B. Amey
PY  - 1998
DO  - 10.3133/cir930o
UR  - https://pubs.usgs.gov/publication/cir930O
ID  - cir930O
ER  -