000			00375nam a2200145Ia 4500
008			140317s9999 xx 000 0 und d
082			_a551
100			_aHowell,B.F.
245			_aIntroduction to geophysics:Geological Science.
260			_aN.Y. _bMcGraw-Hill _c1959
300			_a399
650			_aScience of the Earth.
653			_aScience of the Earth.
942			_2ddc _cBK
999			_c845 _d845