Columbia subject headings:
Harvard subject headings:
Islamic law--Early works to 1800
Mufīd, Muḥammad ibn Muḥammad, -1022. Muqniʻah
Shīʻah--Early works to 1800
Ṭūsī, Muḥammad ibn al-Ḥasan, 995-1067? Tahdhīb al-aḥkām.
Princeton subject headings:
Islamic law--Early works to 1800.
Mufīd, Muḥammad ibn Muḥammad, -1022. Muqniʻah--Early works to 1800.
Shīʻah--Early works to 1800.
Ṭūsī, Muḥammad ibn al-Ḥasan, 995-1067? Tahdhīb al-aḥkām--Early works to 1800.