TY  - BOOK
AU  - GOVETT G J S Ed.
AU  -  GOVETT M H Ed.
TI  - World mineral suppliers:  Assessment and perspective   
SN  - 0444413669
U1  - X9(HZ):27.1.N7, L6 
PY  - 1976///
CY  - Amsterdam
PB  - Elsevier Scientific Publishing Company       
ER  -