TY  - GEN
AU  - Blatt, Harvey
AU  - Owens, Brent E.
AU  - Tracy, Robert J.
TI  - Petrology: igneous, sedimentary, and metamorphic
SN  - 100716737434
U1  - 552 
PY  - 2006///
CY  - New York
PB  - W.h. Freeman and company
KW  - Igneous Rocks
KW  - Metamorphic Rocks
KW  - Sedimentary Rocks
ER  -