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| Publisher |
DC |
| Artist |
Curt Swan |
| Writer |
Jerry Siegel |
| Published | March 1968 |
THE UNKNOWN SUPERGIRL (Reprinted from Action Comics #278) SUPERGIRL'S SECRET ENEMY (Reprinted from Action Comics #279) TRAPPED IN KANDOR (Reprinted from Action Comics #280) MILESTONES IN SUPERGIRL'S LIFE THE THREE RED K PERILS (Reprinted from Action Comics #283) THE SUPER-MERMAID (Reprinted from Action Comics #284) THE WORLD'S GREATEST HEROINE! PART 1 (Reprinted from Action Comics #285) THE INFINITE MONSTER! PART 2 (Reprinted from Action Comics #285)