Columbia subject headings:
Gems--Early works to 1800.
Ibn al-Akfānī, Muḥammad ibn Ibrāhīm, approximately 1286-1348 or 1349. Nukhab al-dhakhāʻir fī aḥwāl al-jawāhir.
Precious stones--Early works to 1800.
Harvard subject headings:
Gems--Early works to 1800.
Ibn al-Akfānī, Muhạmmad ibn Ibrāhīm, approximately 1286-1348 or 1349. Nukhab al-dhakhāʻir fī ahẉāl al-jawāhir.
Precious stones--Early works to 1800
Princeton subject headings:
Gems--Early works to 1800.
Ibn al-Akfānī, Muḥammad ibn Ibrāhīm, approximately 1286-1348 or 1349. Nukhab al-dhakhāʻir fī aḥwāl al-jawāhir.
Precious stones--Early works to 1800.