00346nam a22001337a 4500 624.15132 SCH D Schach, R 42797 Rock Bolting / A practical handbook New York : Pergamon Press, . 84 p. : 0 0 0 624_151320000000000_SCH MCE 379 ddc BK 546631 546631 0 0 ddc 0 0 MCE MCE 2014-06-17 1 624.15132 SCH MCE-44882 2017-04-20 2017-02-23 2014-06-17 BK