TY  - BOOK
AU  - Govett, G. J. S.
AU  - M. H. Govett
TI  - World mineral supplies: assessment and perspective
T2  - Developments in Economic Geology; 3
AV  - TN263.W2 
PY  - 1976///
CY  - Amsterdam
PB  - Elsevier
KW  - Mines and mineral resources
ER  -