00346nam a2200133Ia 4500003000900000008004100009041001200050082001700062100001500079245004800094250000900142260005300151300000800204IQ-KOUCL260826s9999||||xx |||||||||||||| ||und|| aEnglish a622 .15 K 21 aP. Kearey  3aAn introduction to Geophysical exploration  aed 1 bBlackwell Scientific publications aOxfordc1984 a296