| Á JOUR | [ažúr] načas, nemeškať, neoneskorovať sa (kniž.) |
|---|---|
| AAB | American Association for Bronchology |
| AAN | American Academy of Neurology (skr.) |
| AAR | Association of American Railroads, Asociácia amerických železničných spoločností (angl.skr.) |
| AAS | Advances in the Astronautical Sciences |
| AAS | American Astronautical Society |
| AAS | American Astronomical Society |
| AAS | American Astrophysical Society |
| AAS | Australian Anthropological Society |
| ABA | Australian Broadcasting Authority |