Audiometry for the retarded :  with implications for the difficult-to-test / 
edited by Robert T. Fulton [and] Lyle L. Lloyd 
 - Baltimore :  Williams & Wilkins,  c1969 
 - xiv, 276 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 12.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiometry<br/>People with mental disabilities--Testing
<br/><br/><label>Dewey Class. No.: </label>152.28