000			00325nam a2200133Ia 4500
005			20260205042052.0
008			260111s9999||||xx |||||||||||||| ||und||
100			_aRICHTER CHARLES F
245		0	_aELEMENTARY SEISMOLOGY
260			_aSAN FRANCISCO _bW.H. FREEMAN _c1958
300			_a768
690			_aSEISMOLOGY
942			_cBK
999			_c26206 _d26206