- Ashburnham, Bertram Ashburnham, Earl of, 1797-18781
- Ashbāh wa-al-naẓāʼir (Ibn Nujaym, Zayn al-Dīn ibn Ibrāhīm)13
- Asia3
- Asia--Ganges River15
- Assassination2
- Assumption of the Blessed Virgin Mary5
- Assyrian Church of the East1
- Astarābādhī, Muḥammad ibn ʻAlī, -1618 or 1619. Manhaj al-maqāl fī taḥqīq aḥwāl al-rijāl2
- Astarābādī, al-Ḥasan ibn Muḥammad, d. 1315. Wāfīyah fī sharḥ al-Kāfīyah2
- Astrolabes36
- Astrology69
- Astrology and death1
- Astrology, Arab38
- Astrology, Indic1
- Astrology, Iranian4
- Astrology, Roman1
- Astrology, Turkish2
- Astrology--Religious aspects1
- Astrometeorology4
- Astronomical instruments15