Crystal, David,  1941- <br/><br/>
Introduction to language pathology / 
David Crystal, Rosemary Varley. 
 - 4th ed. 
 - London :  Whurr Publishers,  c1998. 
 - xvii, 267 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 252-253) and indexes. 
<br/><br/><label>ISBN: </label>1861560710 
<br/><br/><label>LCCN: </label>99166943  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language disorders.
<br/><br/><label>LC Class. No.: </label>RC423  / .C76 1998 
<br/><br/><label>Dewey Class. No.: </label>616.85/5