For Every Action... #21
| Series | X-Factor |
| Number | Vol. 1 #21 |
| Publisher | Marvel Comics |
| Date | 1987-10 |
| Type | Comic Book, Softcover |
| Language | English |
| Colorist | Petra Scotese* |
| Editor | Bob Harras |
| Editor In Chief | Jim Shooter |
| Inker | Bob Wiacek |
| Letterer | Joe Rosen |
| Penciler | Walter Simonson* |
| Writer | Louise Simonson |
| Genre | Superhero |
| Published in | US |
| Pages | 36 |
Added by arbakol