Crystal, David. <br/><br/>
Introduction to language pathology / 
David Crystal, Rosemary Varley. 
 - 4th ed. 
 - London :  Whurr Publishers,  2004. 
 - xvii, 267 p. :  ill. ;  24 cm. 
<br/><br/>Includes references & index. 
<br/><br/><label>ISBN: </label>9781861560711 (pbk.) 
<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>616.855  / CRY