Introduction to instrumentation in speech and hearing 
Edward A. Cudahy. 
 - Baltimore :   Williams & Wilkins,   c1988. 
 - xiii, 339 p. :   ill. ;   24 cm. 
<br/><br/>  Includes index. 
<br/><br/><label>ISBN: </label>0683022458 
<br/><br/><label>LC Class. No.: </label>KU RF87   / .C83 1988