| Editorial | IDW Publishing |
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| Fecha de publicación | Nov 15, 2016 |
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| Páginas | 292 |
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| Formato | paperback |
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| ISBN-13 | 9781631407710 |
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| ISBN-10 | 1631407716 |
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| Número de Cutter | C196m |
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An enigmatic new foe brings together some of the most villainous characters in Equestria to attack the Crystal Empire in "Siege of the Crystal Empire!."