000			00299nam a22001217a 4500
999			_c2571 _d2571
020			_a0931830036
082			_a550.03
100			_aR. E. Sheriff
245			_aEncyclopedic Dictionary of Exploration Geophysics
260			_aUSA _bSociety of Exploration Geophysics _c1982
300			_a266
942			_cBK