प्रस्तावित विषय : खोज निहित
प्रस्तावित विषय : खोज निहित
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1प्रकाशित 1956[Johannesburg : South African Institute of Mining and Metallurgy, 1956]-v. : ill. ; 30 cm.विषय: “...Mineral industries South Africa Periodicals....”
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2प्रकाशित 1920Johannesburg : Mining Journal, 1920-v. : ill. ; 33 cm.विषय: “...Mines and mineral resources South Africa Periodicals....”
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3Johannesburg : South African Pub. Co.11 v. : ill. ; 32 cm.विषय: “...Mineral industries South Africa Periodicals....”