RB 83/00048 Opal industry in SA. Report no. 5. The 1982 survey of mining equipment and calculation of value of opal produced.
Additional information
Description | |
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Format | |
Size | 1.13 MB |
Created | November 6, 2024 |
Data last updated | November 6, 2024 |
License | Creative Commons Attribution 4.0 |