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Johnstone, Margery G., joint author. (Nombre personal)
Machine generated authority record.
Work cat.: (OSt)0: Johnstone, Sydney J. (Sydney James) 213, Minerals for the chemical and allied industries, 1961.
Machine generated authority record.
Work cat.: (OSt)0: Johnstone, Sydney J. (Sydney James) 213, Minerals for the chemical and allied industries, 1961.