Template: RefSFUSN04
From Trekipedia
Star Fleet Staff of 1983. "SN4: Assault on a Starbase." Star Fleet Battles Commander's Edition Update #2. Designed by Stephen V. Cole. Task Force Games. 25 November 1988. Originally published as "503: Assault on a Starbase" in Nexus Magazine Vol. 1 No. 4, January-February 1983 for the Star Fleet Battles Designer's Edition.