Encyclopedias, Almanacs, Transcripts, and Maps
- AMERICAN STYLE GUIDES
 - Americans
 - Americas
 - Americas, The
 - Americo de Figuereido e Melo, Pedro (1843–1905)
 - AMERINDIAN PIDGIN ENGLISH
 - Amézaga, Juan José de (1881–1956)
 - Amin Bey, al-
 - Amis du Manifeste et de la Liberté
 - Amorim, Enrique (1900–1960)
 - Amorim, Pedro (1958–)
 - Amparo, Writ of
 - Ampère, André Marie (1775–1836)
 - Ampíes, Juan de (?–1533)
 - Ampudia y Grimarest, Pedro de (1805–1868)
 - Amuesha
 - Amunátegui Aldunate, Miguel Luis (1828–1888)
 - Amuzgo
 - ANADIPLOSIS
 - Anáhuac
 
