kw.\*:("TOQUEPALLA")
Results 1 to 1 of 1
Selection :
REPUBLIC OF SOUTH AFRICA, PERU. DIRECT OPERATING COSTS AT PALABORA AND TOQUEPALLA PROVE THAT OTHER COMPANIES CAN PREDICT NEW MINE COSTS ON SIMILAR TONNAGES.1969; WORLD MING; USA; 1969(6), VOL. 22, NUM. 0006, P. 62 A 63Miscellaneous
