| Issue | #217 |
| Published | November 1977 |
| Cover Price | 0.35 USD |
| Pages | 36 |
| Editing | Len Wein |
| Characters | The Hulk; The Ringmaster |
| Genre | superhero |
| Pencils | Jim Starlin |
| Inks | Jim Starlin |
| Letters | Dan Crespi ? |
| Reprinted | in Mighty World of Marvel, The (Marvel UK, 1972 series) #288; in Uomo Ragno, L' [Collana Super-Eroi] (Editoriale Corno, 1970 series) #257 |
| Characters | Ringmaster (villain); Circus of Crime; The Hulk |
| Genre | superhero |
| Script | Len Wein |
| Pencils | Sal Buscema (breakdowns); Ernie Chan (finished art) |
| Inks | Ernie Chan |
| Colors | Glynis Wein |
| Letters | Gaspar Saladino (page one), John Costanza |
| Editing | Len Wein |
| Reprinted | in Mighty World of Marvel, The (Marvel UK, 1972 series) #288 [5 pp., as "The Circus of Fear!"]; in Uomo Ragno, L' [Collana Super-Eroi] (Editoriale Corno, 1970 series) #257; in Incroyable Hulk, L' (Editions Héritage, 1968 series) #74/75 |