| References: |
- Deposit:: BALDOCK, J.W., HEPWORTH, J.V., AND MARENGWA, B.S.I., 1977, RESOURCE INVENTORY OF BOTSWANA: METALLIC MINERALS, MINERAL FUELS AND DIAMONDS: BOTSWANA GEOLOGICAL SURVEY MINERAL RESOURCES REPORT 4, 69 P.
- Deposit:: ALLEN, H.E.K., 1985, INTRODUCTION OF MANAGEMENT OBJECTIVES AT ORAPA AND LETLHAKANE DIAMOND MINES, BOTSWANA: THE TRANSITION FROM PROJECT TO OPERATIONS: INSTITUTION OF MINING AND METALLURGY TRANSACTIONS, SECTION A, MINING INDUSTRY, V. 94, NO. 4, P. A195-A203.
- Production:: MINING ANNUAL REVIEW, 1972-1987.
- Reserve-Resource:: BALDOCK AND OTHERS, 1977
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