Irwin, David <br/><br/>
Clinical research methods in speech-language pathology and audiology 

 - 2nd ed 
 - San Diego :  Plural Publication,  2008. 
 - 	xii, 297 p  illustrations ; 26 cm 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label>9781597565080 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language disorders--Research--Methodology<br/>Biology--Research<br/>Speech therapy<br/>Audiology