00453nam a2200181Ia 4500008004100000041001200041082000800053082001100061100001500072100001100087245003500098260001200133260004500145260000900190300001600199365002500215650003100240150909s9999    xx            000 0 und d  aEnglish  a551  bHOL/PR  aHolmes A    eAuthor  aPrinciples of physical geology  aBritain  bEnglish language book society and nelson  c1972  a1288  Pages  aRs.322                aEarth science/ earth'crust