TY  - BOOK
AU  - Larsen,Esper Signius
AU  - Berman,Harry
TI  - The microscopic determination of the nonopaque minerals
PY  - 1934///
CY  - Washington
PB  - U.S. Government Printing Office
KW  - Mineralogy, Determinative
N1  - At head of title: United States Dept. of the interior
ER  -