Title: al-Aḥjār al-karīmah fī al-fann wa-al-tārīkh /
Authors: Zakī, ʻAbd al-Raḥmān.
Publisher: al-Muʾassash al-Miṣrīyah al-ʻĀmmah lil-Taʾlīf wa-al-Tarjamah,
Year: 1964
Subjects: Precious stones; Gems