Periodontal therapy / 
by Henry M. Goldman and D. Walter Cohen 
 - 6th ed. 
 - St. Louis, Mo. :  C. V. Mosby,  1980 
 - xiii, 1217 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0801618754 
<br/><br/><label>LCCN: </label>79-13055 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodontics<br/>Periodontal diseases--Therapy