Gubelin, Eduard .
Photoatlas of inclusions in gemstones - Zurich ABC Edition 1986 - 532p. : col. photos.
photos by Gubelin, E.J. & Koivula, J.I.
0855040958
PRECIOUS STONES-Inclusions
549.091 / G8
Photoatlas of inclusions in gemstones - Zurich ABC Edition 1986 - 532p. : col. photos.
photos by Gubelin, E.J. & Koivula, J.I.
0855040958
PRECIOUS STONES-Inclusions
549.091 / G8