Simpson, J.A <br/><br/>
The Oxford English dictionary, Vol. iv 

 - 2nd ed. 
 - Oxford  Clarendon Press  1989 
 - [6],1144 p. 
<br/><br/><label>ISBN: </label>9780198611868 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language
<br/><br/><label>Dewey Class. No.: </label>423  / OXF