ISBN-13: 9789061916109 / Angielski / Twarda / 1985 / 798 str.
ISBN-13: 9789061916109 / Angielski / Twarda / 1985 / 798 str.
Papers from the Proceedings of the 21st International Conference of Safety in Mines Research Institute , held in Sydney , Australia , on the Oct. 21-25 , 1985.