Diringer, David. <br/><br/>
The alphabet :  a key to the history of mankind / 

 - 3rd ed. 
 - London :  Hutchinson,  c1968. 
 - vols. 
<br/><br/><label>ISBN: </label>0090676416 (v.1) 
<br/><br/><label>LCCN: </label>090676408 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Writing--History.