00425nam a2200157 a 4500008004100000020001500041050001700056100001900073245002900092260004900121300002300170350000900193500001800202650001500220650003200235120416s1999    ||||||||||||||||| ||    u  a0521624789  aQE 534.2 Udi  aUdias, Agustin10aPrinciples of seismology  aCambridgebCambridge University Pressc1999.  axiv, 475 p. : ill.  a0.00  aBibliography.  aSeismology  aGEOLOGY--STUDY AND TEACHING