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200 1 $aGeotechnical stability in surface mining$eproceedings of the International symposium on geotechnical stability in surface mining$eCalgary, 6-7 November 1986$fedited by Raj K. Singhal
210   $aRotterdam$cA.A. Balkema$d1986
215   $aX, 411 p$d24 cm
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606 0 $aColtivazione a cielo aperto$xCongressi$z1986
606 0 $aStabilità strutturale$xCongressi$z1986
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702  1$aSINGHAL,$bRaj K.
710 12$aInternational symposium on geotechnical stability in surface mining <1986 ; Calgary>$0549562
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996   $aGeotechnical stability in surface mining$9962401
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