TY  - BOOK
AU  - Ernst, Wallace Gary
TI  - EARTH MATERIALS
U1  - 552 
PY  - 1969///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - Mineralogy
KW  - Geochemistry
KW  - Petrology
N1  - Includes Bibliography
ER  -