Columbia subject headings:
Islam--Doctrines--Early works to 1800.
Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274. Qawāʻid al-ʻaqāʼid.
Harvard subject headings:
Islam--Doctrines--Early works to 1800.
Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274. Qawāʻid al-ʻaqāʾid.
Princeton subject headings:
Islam--Doctrines--Early works to 1800.
Shīʻah--Doctrines--Early works to 1800.
Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274. Qawāʻid al-ʻaqāʼid.