TY  - RPRT
TI  - Barite: a case study of import reliance on an essential material for oil and gas exploration and development drilling
AU  - Donald I. Bleiwas
AU  - M. Michael Miller
PY  - 2015
DO  - 10.3133/sir20145230
UR  - https://pubs.usgs.gov/publication/sir20145230
ID  - sir20145230
ER  -