| #171 | Anzeiger für Schädlingskunde. -- Berlin : Springer, 1999-2003. -- ISSN 1436-5693 print. -- ISSN 1439-0280 online |
| #172 | Apicultural abstracts. -- Gerrards Cross : International Bee Research Association, 1962-. -- ISSN 0003-648X |
| #173 | Apidologie. -- Celle : Arbeitsgemeinschaft der Institute für Bienenforschung, 1970-. -- ISSN 0044-8435 print. -- ISSN 1297-9678 online |
| #174 | Appaloosa journal. -- Moscow : Appaloosa Horse Club, 1987-. -- ISSN 0892-385X |
| #175 | Applied Economic Perspectives and Policy. -- Oxford : Oxford University Press, 2010-. -- ISSN 2040-5790 |
| #176 | Applied soil ecology. -- Amsterdam : Elsevier, 1994-. -- ISSN 0929-1393 print. -- ISSN 1873-0272 online |
| #177 | Appropriate technology. -- London : Intermediate Technology Publications, 1974-. -- ISSN 0305-0920 print. -- ISSN 1751-6900 online |
| #178 | Aquacultural engineering. -- London : Applied Science Publishers, 1982-. -- ISSN 0144-8609 print. -- ISSN 1873-5614 online |
| #179 | Aquaculture nutrition. -- Oxford : Blackwell Science, 1995-. -- ISSN 1353-5773 print. -- ISSN 1365-2095 online |
| #180 | Aquaculture research. -- Oxford : Blackwell Science, 1995-. -- ISSN 1355-557X print. -- ISSN 1365-2109 online |