Reference | {Deposit:: ANON, 1985, PARANAPANEM* PITINGA DEPOSIT BOOSTS BRAZILIAN OUTPUT: MINING JOURNAL, LONDON, VOL 304, NO 7818, P. 457}{Deposit:: ANON, 1988, BRAZI* ZIRCONIUM: MINING JOURNAL, LONDON. VOL. 311, NO. 7994, P. 373}{Deposit:: ANON, 1987, BRAZILIAN PRODUCERS DOWN-STREAM INTO OXIDES: TANTALUM-BIOBIUM- INTERNATIONAL STUDY CENTER. BULLETIN NO. 51, P. 3-4} |