TY  - GEN
AU  -  Spradley,Joseph L.
TI  - Earth science : physics and chemistry of the earth 
SN  - 9781587659744
U1  - 550 SPR1 
PY  - 2012///
CY  - New Jersey
PB  - Salem Press, 
KW  - Earthquakes
KW  - Climate change
KW  - Earth Tides
KW  - Earth's Age
ER  -