Browse TRAIL Inventories

Design and test operation of a pneumatic vibrating-blade planer :a progress report on phosphate-mining research, 1956-57

Test operation of a pneumatic vibrating-blade planer in phosphate and coal :a progress report on planer-mining research, 1958-60

Test operation of a pneumatic vibrating-blade planer :a progress report on phosphate mining research

Beneficiation of a phosphate ore produced by borehole mining

Economic evaluation of borehole and conventional mining systems in phosphate deposits

Phosphate rock availability--world :a minerals availability program appraisal


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