Authors
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)
Nilamber Awasthi (N.Awasthi) fl. 1982
Daniel Isaac Axelrod (Axelrod) *1910 - †1998
Brian J. Axsmith (Axsmith) *1963 - †2020
Direnç Azaz (Azaz)
C.L. Azcuy (Azcuy)