Wardhaugh Ronald <br/><br/>
Investigating Language :  central problems in linguistics 

 - Oxford [England] ;  Cambridge, Mass. :  Blackwell,  1993. 
 - viii, 292 p. ;  24 cm. 
 - Language library .
<br/><br/>Includes bibliographical references (p. [275]-287) and 
<br/><br/><label>ISBN: </label>0631187537 (acid-free paper) 0631187545 (pbk.) 
<br/><br/><label>LCCN: </label>92038739 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages<br/>Linguistics
<br/><br/><label>LC Class. No.: </label>P106