MLA

Abū Shujāʻ al-Iṣfahānī, Aḥmad ibn al-Ḥusayn, approximately 1042- author, أبو شجاع الإصفهاني، أحمد بن الحسين، approximately 1042- author. Ghāyat al-ikhtiṣār : manuscript. 1291.. https://collections.library.yale.edu/catalog/31962535.

APA, 6th edition

Abū Shujāʻ al-Iṣfahānī, Aḥmad ibn al-Ḥusayn, approximately 1042- author, & أبو شجاع الإصفهاني، أحمد بن الحسين، approximately 1042- author. (1291.)[Ghāyat al-ikhtiṣār : manuscript]. https://collections.library.yale.edu/catalog/31962535.