000 00285pam a2200121a 44500
010 _a60010037
082 _a620.101
_bL518V
100 _aLeet, L. Don
245 1 _aVIBRATIONS FROM BLASTING ROCK
260 _a
_bHarvard University Press
_c1960
964 _gCIRC
997 _a39969 s C
999 _c408618
_d408618