00433nam a2200169 a 450000500170000008200160001710000180003324500410005126000350009230000220012749000330014963000130018263000150019563000210021063000150023163000170024620251203091110.0  a503.21bWSW  aDixon, Dougal  aGeologybrocks, minerals and fossils  aNew YorkbFranklin Watisc1986  a38 p.b29 cm.cHB  aFranklin Watts Science World  aSciences  aHard Rucks  aEconomic Geology  aSoft Rocks  aMoving Crust