Geronimo Stilton Superherois 1. Els Defensors de Muskarrat City
| Editor | Serena Bellani |
| Art Assistant | Tomasso Valsecchi |
| Graphic Production by | Michaela Battaglin |
| Publisher | Editorial Planeta, S. A., Edicions 62 |
| Illustrator | Giuseppe Facciotto |
| Cover Art by | Flavio Ferron |
| Editorial Coordination | Patrizia Puricelli |
| Colored/Colorized by | Daniele Verzini |
| Editorial Assistant | Bendetta Biasi |
| Translated by | David Nel·lo |
| Series Designer | Flavio Ferron, Giuseppe Facciotto |
| Based on an idea by | Elisabetta Dami |
| Art Director/Editor | Flavio Ferron |
| Associate Editor | Jacopo Olivieri |
| Series | Geronimo Stilton Superherois |
| Publisher Series | Estrella Polar, Destino |
| Format | Paperback |
| Language | Catalan |
| Location | Barcelona, Spain |
| Copyright | 2009 |
| This Edition Published | 2010-07 |
| Pages / Font | 187 pages |
| Barcode | 9788499321165 |
| ISBN | 9788499321165 |
| DL (Spanish) | B.31.668-2010 |
| Series Number | 1 |
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