Duiker, William J. <br/><br/>
The Essential world history / 
William J. Duiker. 
 - 6th 
 - Boston, MA :  Cengage Learning,  2011. 
 - xxxv, 844 p.:   col. ill.  26 cm. 
<br/><br/> Includes index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9780495902942 
<br/><br/><label>LC Class. No.: </label>909 D88e