TY  - BOOK
AU  - Gutenberg,B.
AU  - Richter,C.F.
TI  - Seismicity of the earth: and associated phenomena
U1  - 551.22 GUT. R 
PY  - 1965///
CY  - New York
PB  - Hafner Publishing Company
KW  - Physical and dynamic geology
KW  - Earthquakes
ER  -