| #201 | Antonie van Leeuwenhoek : journal of microbiology and serology. -- Dordrecht : Kluwer Academic, 1934-. -- ISSN 0003-6072 print. -- ISSN 1572-9699 online |
| #202 | Anuário da Sociedade Broteriana. -- Coimbra : Sociedade Broteriana, 1935-. -- ISSN 0373-4641 |
| #203 | Anzeiger für Schädlingskunde. -- Berlin : Springer, 1999-2003. -- ISSN 1436-5693 print. -- ISSN 1439-0280 online |
| #204 | Apoptosis. -- London : Rapid Science, 1996-. -- ISSN 1360-8185 print. -- ISSN 1573-675X online |
| #205 | Applied and environmental microbiology. -- Washington : American Society for Microbiology, 1976-. -- ISSN 0099-2240 print. -- ISSN 1098-5336 online |
| #206 | Applied biochemistry and biotechnology. -- Clifton : Humana Press, 1981-. -- ISSN 0273-2289 print. -- ISSN 1599-0291 online |
| #207 | Applied biochemistry and microbiology. -- Moscow : Nauka, 1965-. -- ISSN 0003-6838 print. -- ISSN 1608-3024 online |
| #208 | Applied bionics and biomechanics. -- Cambridge : Woodhead, 2003-. -- ISSN 1176-2322 print. -- ISSN 1754-2103 online |
| #209 | Applied microbiology. -- Baltimore : Williams & Wilkins, 1953-1975. -- ISSN 0003-6919 |
| #210 | Applied microbiology and biotechnology. -- Berlin : Springer, 1984-. -- ISSN 0175-7598 print. -- ISSN 1432-0614 online |