Wizards Rpg Team. <br/><br/>
D&D Dungeon Master’s Guide (Dungeons & Dragons Core Rulebook). 

 - 320  p. 
<br/><br/> D&D Dungeon Master’s Guide (Dungeons & Dragons Core Rulebook) by Wizards Rpg Team (2014) 
<br/><br/><label>ISBN: </label>0786939532