"When Titans Clash!" #77
| Series | Uncanny X-Men |
| Number | Vol. 1 #77 |
| Publisher | Marvel Comics |
| Date | 1972-08 |
| Type | Comic Book, Softcover |
| Language | English |
| Genre | Superhero |
| Published in | USA |
| Notes | This issue reprints X-Men #29 with new cover art. |
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