Authors
Emanuel Antonescu (Antonescu)
Luisa Matilde Anzótegui (Anzót.) *1946
PE APA (APA)
Sebastián Apesteguía (Apesteguía) fl. 2017
Mitsuru Arai (M.Arai) fl. 2018
Ana M. Arbazua (Arbazua) fl. 2018
Edward Alexander Newell Arber (E.Arber) *1870 - †1918
Sergio Archangelsky (S.Archang.) *1931 - †2022
Chester Arthur Arnold (C.A.Arnold) *1901 - †1977
Khaled Arouri (Arouri) fl. 2000
Analía Emilia Eva Artabe (Artabe) *1954
Edmund Tyrell Artis (Artis) *1789 - †1847
Kazuo Asama (Asama)
Sidney R. Ash (Ash) *1928 - †2019
Gökhan Atıcı fl. 2018
Brian A. Atkinson (B.A.Atk.) fl. 2018
John Jacob Atwood (J.J.Atwood)
Kevin R. Aulenback (Aulenback) fl. 2000
Aye Thida Aung (A.T.Aung)