TY  - BOOK
ED  - United States Department of Interior Burean of Mines
TI  - Minerals yearbook
U1  - R1 
PY  - 1990///
CY  - [Washington]
PB  - Department of Interior Burean of Mines
KW  - MINERALES
KW  - METALES
KW  - ORO
KW  - ALUMINIO
KW  - COBRE
KW  - PLATA
KW  - ESTADISTICA
KW  - USA
N1  - Impreso; 07580
N2  - This publication discusses the performance of the worldwide mineral industry during 1988 and provides background information to assist in interpreting that performance. This first volume contains chapters on virtually all metallic and industrial mineral commodities important to the US economy. It includes a survey methods and statistical summary of nonfuel minerlas chapter and a chapter on mining and quarrying trends
ER  -