TY  - BOOK
AU  - Van Rensburg W C J
TI  - Strategic minerals :  Issues and strategies   
T2  - Prentice-hall international series in world resources, energy and minerals
SN  - 0138514119
U1  - X9(H1).1.N8, M6.1-.2 
PY  - 1986///
CY  - New Jersey 
PB  - Prentice-hall         
KW  - Minerals
ER  -