TY  - BOOK
AU  - Hatch, F.H.  .,
TI  - Petrology of the igneous rocks / 
SN  - 81-239-1030-8
U1  - H21 
PY  - 1984///
CY  - Delhi : 
PB  - CBS Publishers & Dishtributors , 
KW  - Geology
ER  -