TY  - BOOK
AU  - Udías Vallina,Agustín
TI  - Principles of seismology / 
SN  - 9780521624787 (pbk.)
U1  - 551.22 
PY  - 1999///
CY  - Cambridge, New York
PB  - Cambridge University Press
KW  - Seismology
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/samples/cam032/98032174.html
UR  - http://www.loc.gov/catdir/description/cam029/98032174.html
UR  - http://www.loc.gov/catdir/toc/cam021/98032174.html
ER  -