Wardhaugh, Ronald. <br/><br/>
Investigating language :  central problems in linguistics / 
Ronald Wardhaugh. 
 - Oxford, UK ;  Cambridge, Mass., USA :  Blackwell,  1993. 
 - viii, 292 p. ;  24 cm. 
 - The Language library .
<br/><br/>Includes bibliographical references (p. [275]-287) and index. 
<br/><br/><label>ISBN: </label>0631187537 0631187545 9780631187530 9780631187547 
<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  / WAR1993 
<br/><br/><label>Dewey Class. No.: </label>410