00536nam a22001337a 4500 230807b |||||||| |||| 00| 0 eng d National Science Library National Science Library 669.05(082.2) K8 Advances in extractive metallurgy / Proceedings of s Symposium Organised by the Institution of Mining and Metallurgy..................17 to 20 April, 1967 London: The Institution of Mining and Metallurgy, 1968 xiv, 1023p. Proceedings udc PR 57912 57912 0 0 udc 0 669050822_K8 0 109094 NSL NSL FF/Rk-2/C-13/R-1 1969-02-10 0 669.05(082.2) K8 26321 2023-08-07 00:00:00 1969-02-10 PR