Additional information
| Barcode | N/A |
|---|---|
| Character | Supergirl (Kara Zor-El), Janu, Congorilla ('Congo Bill' Glenmorgan), Perry White, Superman (Kal-El / Clark Kent), Lois Lane, Lex Luthor |
| Cover Date | October 1959 |
| Issue | 257 |
| Rating | N/A |
| Artist | Howard Sherman, Jim Mooney |
| Colorist | N/A |
| Cover Artist | N/A |
| Cover Colorist | N/A |
| Cover Inker | Stan Kaye |
| Cover Painter | N/A |
| Cover Penciller | Curt Swan |
| Cover Separator | N/A |
| Editor | Mort Weisinger |
| Editor in Chief | Mort Weisinger |
| Inker | Stan Kaye |
| Layouts | N/A |
| Letterer | N/A |
| Painter | N/A |
| Penciller | Wayne Boring |
| Plotter | N/A |
| Scripter | N/A |
| Separator | N/A |
| Translator | N/A |
| Writer | Otto Binder, Robert Bernstein |
