li-Abī Abd ʻAllāh Muḥammad ibn Jaʻfar ibn Idrīs al-Ḥasanī al-Idrīsī al-Kattānī.Lithograph.لأبي عبد الله محمد بن جعفر بن إدريس الحسني الادريسي الكتاني.Electronic reproduction. Cambridge, Mass. : Harvard College Library Digital Imaging Group, 2009. (Open Collections Program at Harvard University. Islamic Heritage Project). Copy digitized: Widener Library: OL 26598.8.15.