Park, K. <br/><br/>
Park's Textbook of preventive and social medicine / 
K. Park . 
 - 19th ed. 
 - Jabalpur (India) :  Banarsidas Bhanot ,  2005 . 
 - 768 p. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine, Preventive.<br/>Social medicine