TY  - BOOK
AU  - WINCHELL, ALEXANDER N.
TI  - ELEMENTS OF OPTICAL MINERALOGY
T2  - 0
U1  - 549.125 
PY  - 1951///
CY  - NEW YORK-LONDON-U.S.A.
PB  - JOHN WILEY Y SONS INC.
KW  - CIENCIAS PURAS
N1  - ELEMENTS/HALLIDES/SULFIDES/OXIDES
ER  -