TY - BOOK A1 - [edited by] Eugeniusz J. Sobczyk, Jerzy Kicki. TI - Technical, technological and economical aspects of thin-seams coal mining PB - کتابخانه مطالعات اسلامی به زبان‌های اروپایی SN - 89989337 UR /book/89989337/Technical-technological-and-economical-aspects-of/ ER -