Wardhaugh, Ronald. <br/><br/>
Introduction to linguistics/  Ronald Wardhaugh,  

 - New York,  McGraw-Hill   c1972] 
 - viii, 239 p.:  illus.;  23 cm. 
<br/><br/>Bibliography: p. 223-229. 
<br/><br/><label>ISBN: </label>070681503 
<br/><br/><label>LCCN: </label>70168458  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistics.
<br/><br/><label>LC Class. No.: </label>P121  / .W21 1972 
<br/><br/><label>Dewey Class. No.: </label>410