TY  - BOOK
AU  - Richter Charles F.
TI  - Elementary Seismology
U1  - 624.1762 
PY  - 1969///
CY  - New Delhi
PB  - Eurasia
KW  - Earthquake -Geology
KW  - Earthquake -USSR
KW  - Seismology
KW  - Settements analys
N1  - Includes bibleografical references index
ER  -