| #201 | Archiwum Rybactwa Polskiego. -- Olsztyn : Institut Rybactwa Sródladovego, 1992-. -- ISSN 1230-6428 |
| #202 | Arid land research and management. -- New York : Taylor & Francis, 2001-. -- ISSN 1532-4982 print. -- ISSN 1532-4990 online |
| #203 | Arid soil research and rehabilitation. -- New York : Taylor & Francis, 1987-2000. -- ISSN 0890-3069 print. -- ISSN 1521-0405 online |
| #204 | Arquivo brasileiro de medicina veterinária e zootecnia. -- Belo Horizonte : Universidade Federal de Minas Gerais, 1983-. -- ISSN 0102-0935 print. -- ISSN 1678-4162 online |
| #205 | Arquivos do Instituto Biológico. -- Sao Paulo : Instituto Biológico, 1934-. -- ISSN 0020-3653 print. -- ISSN 1808-1657 online |
| #206 | Arthropod structure & development. -- Oxford : Elsevier, 2000-. -- ISSN 1467-8039 print. -- ISSN 1873-5495 online |
| #207 | AsiaFAB. Asia fertiliser and agrochemicals bulletin. -- London : British Sulphur Publishing, 1992-2004. -- ISSN 0968-672X |
| #208 | Asian-Australasian Journal of Animal Sciences. -- Seoul : AAAP, 1988-. -- ISSN 1011-2367 |
| #209 | Atti della Società Italiana delle Scienze Veterinarie. -- Brescia : Società Italiana di Scienze Veterinarie, 1947-1975. -- ISSN 0518-3588 |
| #210 | Ausbildung & Beratung. -- Münster-Hiltrup : Landwirtschaftsverlag, 1955-. -- ISSN 0045-0049 |