- Mass (Music)1
- Massachusetts1
- Massachusetts--Boston3
- Massachusetts--Williamstown3
- Mas̲navī (Jalāl al-Dīn Rūmī, Maulana)1
- Materia medica2
- Mathal al-sāʼir fī adab al-kātib wa-al-shāʻir (Ibn al-Athīr, Ḍiyāʼ al-Dīn Naṣr Allāh ibn Muḥammad)1
- Mathematics4
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- Mawrid al-ẓamʼān (Kharrāz, Muḥammad ibn Muḥammad)1
- Maʻaśeh merkavah1
- Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad, 1389-1459. Kanz al-rāghibīn sharḥ Minhāj al-ṭālibīn1
- Maḥzor10
- Maṣābīḥ al-sunnah (Baghawī, al-Ḥusayn ibn Masʻūd)3
- Medici, Alessandro de', 1510-15371
- Medici, Giuliano de', 1453-14781
- Medici, House of1
- Medicinal plants1
- Medicine6
- Medicine, Ancient2