MLA

Qamūlī, Najm al-Dīn Aḥmad ibn Muḥammad, 1255-1327. al-Baḥr al-muḥīṭ fī sharḥ al-Wasīṭ : al-juzʾ al-tāsiʻ [wa-]al-sādis ʻashar / [before 1327].. Box 1. https://collections.library.yale.edu/catalog/32473409.

APA, 6th edition

Qamūlī, Najm al-Dīn Aḥmad ibn Muḥammad, 1255-1327. (["Box 1"])[al-Baḥr al-muḥīṭ fī sharḥ al-Wasīṭ : al-juzʾ al-tāsiʻ [wa-]al-sādis ʻashar / [before 1327].]. https://collections.library.yale.edu/catalog/32473409.