This issue is a variant of Green Lantern (DC, 1960 series) #173 [Direct Edition]. There exist further variants.
Color credits confirmed by Anthony Tollin.
Carol Ferris and the Earthbound supporting cast return to the strip. Bruce Gordon (Eclipso) is part of the new supporting cast. Non-advertised, Pre-Crisis of Infinite Earths mini-series five-panel-sequence-cameo with The Monitor (Only hands shown w/voice), and Lyla [Harbinger]