00390    a2200121   4500020002000000082001800020100001800038245010800056250001200164260003800176300003400214650002000248  a0080419127 (hc)  a624.15132 HUD  aHudson, J. A.  aEngineering rock mechanics :ban introduction to the principles /cJohn A. Hudson and John P. Harrison.  a1st ed.  aTarrytown, NY :bPergamon,c1997.  axii, 444 p. :bill. ;c26 cm.  aRock mechanics.