Proffit, William R <br/><br/>
Contemporary Orthodontics / 
William R. Proffit 
 - 6th ed. 
 - Singapore :  Elsevier ;  2020 . 
 - viii , 729 p. :  ill ;  27.5 cm . 
<br/><br/> Printed in Pakistan 
<br/><br/><label>ISBN: </label>9780323543873 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dentistry / Medical
<br/><br/><label>Dewey Class. No.: </label>617.643  / PRO-C