TY  - BOOK
AU  - Gubelin, Edward J
TI  - Inclusions as a means of gemstone identification
PY  - 1952///
CY  - Gemological Institute of America
PB  - USA
UR  - http://14.139.222.13:80/cgi-bin/koha/opac-detail.pl?biblionumber=1627
ER  -