TY  - BOOK
AU  - Ehlers,Ernest G.
AU  - Blatt,Harvey
TI  - Petrology: igneous, sedimentary, and metamorphic 
SN  - 8123910320
U1  - 552 22
PY  - 1982///
CY  - India
PB  - CBS Publishers
KW  - Petrology
KW  - Textbooks
N1  - Includes bibliographies and indexes
ER  -