00761nam0-2200277---450-99000981851040332120140204101432.0000981851FED01000981851(Aleph)000981851FED0100098185120140204d1960----km-y0itay50------baengUSa-------001yyVibrations from blasting rockL. Don LeetCambridge (Mass.)Harvard university press1960XIV, 134 p.ill.21 cmLeet,L. Don520451ITUNINARICAUNIMARCBK990009818510403321Q 4/34307DINGEDINGEVibrations from blasting rock835031UNINA