Hobby Kustannus Oy

year of pub­li­ca­ti­onISBNauthor(s)title
1999978-952-5334-01-2Kalevi KeskinenDornier Do 17z Junkers Ju 88 A-4 (Finnish Air Force History, 2)
2000978-952-5334-02-9Kalevi KeskinenFOKKER D.XXI (Mercury)
  ''978-952-5334-03-6   ''FOKKER D.XXI (Wasp)