<a href="https://en.wikipedia.org/wiki/Aero_A.18" class="extiw" title="en:Aero A.18">en:Aero A.18</a> was a biplane fighter aircraft built in Czechoslovakia in the 1920s.
Unknown author<span style="display: none;">Unknown author</span>
Kapitoly o průmyslu Pražského kraje, Praha, 1925