TY  - DATA
AU  - Philpotts Anthony R
TI  - Petrography of Igneous and Metamorphic Rocks
U1  - 552.1 
KW  -   metamorphic
KW  -  anthony
KW  -  igneous
KW  -  philpotts
KW  -  rocks
KW  - petrography
ER  -