Monster Manual 2: A 4th Edition D&D Core Rulebook (D&D Supplement): Rob Heinsoo, Chris Sims, Eytan Bernstein, Greg Bilsland, Jesse Decker, N. Eric Heath, Peter Lee, Owen K.C. Stephens: 9780786951017: Amazon.com: Books
A D&D 4th Edition DM's Guide to 5th Edition: SlyFlourish.com
Dungeons & Dragons Monster Manual: Roleplaying Game Core Rules, 4th Edition: Mike Mearls, Stephen Schubert, James Wyatt: 9780786948529: Amazon.com: Books
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