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100   $a20140922d1961----km-y0itay50------ba
101 0 $aeng
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105   $aa-------101yy
200 1 $aDrilling and blasting symposium$epapers and discussioins fron the tenth annual drilling and blasting symposium held at the Colorado School of mines, Golden october 16-19, 1960
210   $aGolden$cColorado School of Mines$d1961
215   $aV, 338 p.$cill.$d23 cm
225 1 $aQuaterly of the Colorado School of Mines$v56/1
610 0 $aMeccanica delle rocce$aConvegni
710 12$aDrilling and blasting symposium$d10.$f<1960 ;$eGolden, Colorado>$0523705
712 02$aColorado School of Mines
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996   $aDrilling and blasting symposium$9828990
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