TY  - BOOK
AU  - Grotzinger, John 
AU  - Jordan, Thomas H. Press, Frank Siever, Raymond 
TI  - Understanding earth
SN  - 978-0716776963
PY  - 2007///
CY  - New York
PB  - W.H Freeman & Company
KW  - EarthEarth ScienceGeologyGeosystemsPlanets
ER  -