TY - MANSCPT SP - 269 TI - Revision of Euclid's Elements of Geometry (Islah al-ustuqusat) KW - `Ali ibn `Umar ibn `Ali al-Qazwini KW - Athir al-Din al-Mufaddal ibn `Umar al-Abhari AU - Athir al-Din al-Mufaddal ibn `Umar al-Abhari CN - Ar_3424 ER -