Crofton, Ian. <br/><br/>
World history :   50 key milestones you really need to know /  
 Fifty mathematical ideas you really need to know 
Ian Crofton. 
 - London :   Quercus,   2011. 
 - 208 p. ;   21 cm. 
<br/><br/>  Includes index. 
<br/><br/><label>ISBN: </label>9780857380753 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World history.
<br/><br/><label>Dewey Class. No.: </label>909 C L W  221