00282nam a2200109Ia 450000500170000000800410001708200130005810000180007124500410008926000340013030000080016420260224040757.0260224s9999||||xx |||||||||||||| ||und||  a550 BLY   aBlyth, F.G.H. 2aA geology for engineers 7th edition   aLondon: Edward Arnold, c1987  a325