000 00331nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a0865420769
082 _a551 S632
100 _aSLEEP,N.H
245 0 _aPRINCIPLES OF GEOPHYSICS
260 _aMassachusetts
_bBlackwell Scientific
_c1997
300 _a25X20
942 _cBK
_2DDC
999 _c26638
_d26638