Encyclopedias, Almanacs, Transcripts, and Maps
- Anteaters: Myrmecophagidae
- Antelopes and Gazelles
- Antelopes and gazelles
- Antelopes, Cattle, Bison, Buffaloes, Goats, and Sheep: Bovidae
- Antemortem Injuries
- Anthony Hewish
- Anthony Jenkinson
- Anthrax, Investigation of 2001 Murders
- Anthropological Research Foundation
- Anthropology and Bioethics
- Anthropology of Consciousness
- Anthropomancy
- Anthroposophia Pacifica (Newsletter)
- Anthroposophic Press
- Anthroposophical Society
- Anthroposophical Society in America
- Anthroposophical Society in Great Britain
- Anti-Adhesion Methods
- Anti-aging diet
- Anti-inflammatory agents