TY - BOOK AU - Hudson,J.A. ED - Construction Industry Research and Information Association TI - Rock Mechanics Principles In Engineering Practice SN - 040803081X U1 - 624.1513 19 PY - 1989/// CY - London PB - Construction Industry Research and Information Association (CIRIA) KW - Rock mechanics N1 - Includes indexs (p.: 71 - 72 ) ER -