Spitfire 40 + Strike Force Harrier
is not published by Alternative, but their Again Again
label (source: big round Again Again logo on the cover)
year of release should be 1983, rather than 1984 - the loading screen says 1983 and it was advertised in C&VG in 11/83.
The re-release on MicroValue should be removed. The Micro Selection was The Edge's budget label.
The re-release by Cult Games seems to be an error - they only ever re-released D&H games, not Atlantis'.
Like CORE, Xeno and Wibstars
, this was "published" by A&F and "marketed" by Argus - there is no separate release from Argus Press.
There aren't separate releases from Electric Dreams and Activision, just Electric Dreams (who are owned by Activision).
Claims to be from Firebird according to the loading screen, but there's no evidence that it ever was.