GREEN LANTERN #13 (1991)
"Core...!" Guest-starring Green Lantern (Guy Gardner) and Green Lantern (John Stewart). Cameos by Blue Beetle and Fire. Story by Gerard Jones. Art by MD Bright, Romeo Tanghal, Joe Staton, Pat Broderick, and Bruce Patterson. Hal Jordan, Guy Gardner, and John Stewart set out to reform the legendary Green Lantern Corps. Plus, witness the unimaginable - the Guardians laugh.