TY  - BOOK
AU  - Johannsen,Albert
TI  - A Descriptive petrography of the igneous rocks 
U1  - 552 JOH.2  
PY  - 1958///.
CY  - Chicago : 
PB  - The Univesity of Chicago Press, 
KW  - Petrology
KW  - Igneous rocks
KW  - Rocks
N1  - Includes index.
ER  -