TY  - BOOK
AU  - Govett,G.J.S.
AU  - Govett,M.H.
TI  - World mineral supplies: assessment and perspective 
SN  - 0444413669 :
U1  - 333.8 
PY  - 1976///
CY  - Amsterdam,  The Netherlands
PB  - Elsevier Scientific Pub.
KW  - Mines and mineral resources
N1  - Includes index
ER  -