-
The jeweler's directory of gemstonesa complete guide to appraising and using precious stones from cut and color to shape and settingBookद्वारा Crowe, Judith
प्रकाशित 2012 -
द्वारा Zeitner, June Culp
प्रकाशित 1996 -
Introduction to lapidaryrock tumbling cabochon cutting faceting gem carving and other special techniquesBookद्वारा Kraus, Pansy D.
प्रकाशित 1987