TY  - BOOK
AU  - Udias, Agustin
TI  - Principles of seismology
U1  - 551.22 U5P 
PY  - 1999///
CY  - Cambridge
PB  - Cambridge University Press
N1  - 60 15/01/2014 C-7267 25/02/2014 Mathematics (NBHM)
ER  -