TY  - BOOK
ED  - British Geological Survey, BGS
TI  - World mineral statistics
SN  - 0-85272-2
U1  - R1 
PY  - 1993///
CY  - Nottingham
PB  - BGS
KW  - ENERGIA
KW  - MINAS
KW  - ESTADISTICA
N1  - Impreso; 07527 al 07528
N2  - Metals and energy : production, exports, imports. Industrial mineral : production, exports, imports
ER  -