Crystal, David,  1941- <br/><br/>
Introducing linguistics / 
David Crystal. 
 - London :  Penguin English,  1992. 
 - 77 p. ;  20 cm. 
 - Penguin english linguistics .
<br/><br/><label>ISBN: </label>014081017x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistics
<br/><br/><label>LC Class. No.: </label>P121