TY  - BOOK
AU  - Larsen,Esper Signius
AU  - wilcox,Ray E.
AU  - Matzko,John J.
ED  - United States
TI  - The microscopic determination of the nonopaque minerals
U1  - 546 
PY  - 1921///
CY  - Washington
PB  - United States Government Printing Office
KW  - Mineralogy, Determinative
ER  -