000 003460000a22001330004500
008 140223b1947 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aH4132 H4
082 _aH4132 H4
100 _aBullen (K E)
245 _aInteroduction to the theory of seismology
260 _aCambridge
_bCamb Univ
_c1947
650 _aDyanmic Geology
999 _c32124
_d32124