00283nam a2200097Ia 4500003000400000008004100004040001600045082001200061245005900073260005300132GCL140319s9999    xx            000 0 eng d  aGCL / cGCL04a550bTE10aThe Earth:An Introduction To Physical Geology: 4th ed.  a[S.N] : bMacmillan Publishing Company ، c1993