Ex Cathedra Chapter Two #31
| Series | Ex Machina |
| Number | #31 |
| Publisher | DC Comics |
| Date | 2007-12 |
| Type | Comic Book, Softcover |
| Language | English |
| Colorist | JD Mettler |
| Inker | Jim CLark* |
| Letterer | Jared K. Fletcher |
| Penciler | Tony Harris |
| Writer | Brian K. Vaughan |
| Imprint | WildStorm Productions |
| Published in | USA |
Added by djaeon