| Issue | #321 |
| Published | March 1978 |
| Cover Price | 0.35 |
| Pages | 36 |
| Editing | Julius Schwartz |
| Characters | Superman |
| Genre | superhero |
| Pencils | Jose Luis Garcia-Lopez (signed) |
| Inks | Dick Giordano (signed) |
| Characters | Superman; Lois Lane; Perry White; Parasite (villain); Fortress of Solitude; Solomon Grundy; Professor Hadley |
| Synopsis | Superman begins to deal with the massive increase in his superpowers that is being caused by the Parasite. |
| Genre | superhero |
| Script | Martin Pasko |
| Pencils | Curt Swan |
| Inks | Frank Chiaramonte |
| Colors | Jerry Serpe |
| Letters | Milt Snapinn |
| Letters | Typeset |