Crannell, Kenneth C. <br/><br/>
Voice and articulation/ 
Kenneth C. Crannell 
 - 5th ed. 
 - Boston, MA :  Cengage Learning,  2012 
 - xii, 414 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780534514990 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Voice culture<br/>Voice culture--Exercises