Batman: Arkham City / Includes Batman Arkham Asylum - Two Guides in One! (BradyGames Signature Series Guide) by Michael Lummis (2011-05-03): Warner Bros, Michael Owen: 0752073013660: Amazon.com: Books
Batman Arkham Asylum Starring The Joker Bradygames Strategy Game Guide + Poster 9780744011111 | eBay
Batman Arkham City + Arkham Asylum Walmart Exclusive Bradygames Strategy Guide | eBay
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Batman: Arkham Asylum Box Shot for PlayStation 3 - GameFAQs