Crystal, David,  1941- <br/><br/>
Introduction to language pathology / 
[by] David Crystal [and] Rosemary Varley. 
 - 4th ed. 
 - 267 pages :   illustrations ;   24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1861560710  RM129.87 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Speech disorders--Therapy.<br/>Language disorders--Therapy.<br/>Speech-Language Pathology.<br/>Communication Disorders--diagnosis.