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London), S, O, O, M, Q, A, A, M, (, :., Britain), I, O, M, A, M, (. (1965). Opencast mining, quarrying, and alluvial mining: proceedings . xx: .

Gaya MLA

London), Symposium, On, Opencast, Mining,, Quarrying,, And, Alluvial, Mining, (1964, :., Britain), Institution, Of, Mining, And, Metallurgy, (Great. "Opencast mining, quarrying, and alluvial mining: proceedings". xx: , 1965. print.