Narayanan, P. I. A., & Subrahmanyan, N. N. (1959). Beneficiation of low grade manganese ores of India. Council of Scientific & Industrial Research.
Citace podle Chicago (17th ed.)Narayanan, P. I. A., a N. N. Subrahmanyan. Beneficiation of Low Grade Manganese Ores of India. New Delhi: Council of Scientific & Industrial Research, 1959.
Citace podle MLA (8th ed.)Narayanan, P. I. A., a N. N. Subrahmanyan. Beneficiation of Low Grade Manganese Ores of India. Council of Scientific & Industrial Research, 1959.
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