| Issue | #68 |
| Published | April 1969 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (added by Gregory Fischer, May 2009). |
| Genre | superhero |
| Pencils | Gil Kane (signed) |
| Inks | Gil Kane (signed) |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (added by Gregory Fischer, May 2009). |
| Reprinted | in Showcase Presents Green Lantern (DC, 2005 series) #4. |
| Characters | Green Lantern [Hal Jordan]; Commander Calibax; Eve Doremus; Professor Cally; Guardians of the Universe |
| Genre | superhero |
| Script | Denny O'Neil |
| Pencils | Gil Kane |
| Inks | Joe Giella |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (April 2007). |
| Reprinted | in Showcase Presents Green Lantern (DC, 2005 series) #4. |