TY  - BOOK
AU  - Brobst,Donald Albert
ED  - United States
TI  - Barite: world production, reserves, and future prospects
U1  - 553.662 
PY  - 1970///
CY  - Washington, D.C
PB  - United States Government Printing Office
KW  - Geological Survey
KW  - Geology
KW  - Barite
KW  - Survey
N1  - Bibliography: p. 41-46
ER  -