TY  - BOOK
AU  - Institute of Geological Sciences.
ED  - Institute of Geological Sciences.
TI  - World mineral statistics. Comp by C D G Black etc
U1  - X9(HZ).1.1.N76<--N72s, L9 
CY  - London
PB  - H M S O UK      
KW  - Minings
ER  -