TY - BOOK AU - Sewerinski, B. ED - International mineral dressing congress TI - Results of work on the improvement of processing techniques for Polish sulfur ore PY - 1968///] CY - [L. KW - Санкт-Петербург KW - Тг-720 KW - rubbk KW - ˆ[‰И41.44] N2 - Библиогр.: с. 5 ER -