TY  - BOOK
AU  - Govett, G J S
AU  - Govett, M H
TI  - World mineral supplies:  Assessment and perspectives
U1  - 553 
PY  - 1976///
CY  - Amsterdam
PB  - Elsevier
KW  - Economic geology
KW  - Minerals
KW  - Ores
KW  - stones
ER  -