Vista normal
Vista MARC
phosphate rocks (Término temático)
Machine generated authority record.
Work cat.: (OSt): Rule, Albert R. 7778, Removal of magnesium impurities from phosphate rock concentrates, 1970
Machine generated authority record.
Work cat.: (OSt): Rule, Albert R. 7778, Removal of magnesium impurities from phosphate rock concentrates, 1970