Park, K. <br/><br/>
Park's textbook of preventive and social medicine. 

 - 25th. 
 - Jabalpur.  M/s Banarsidas Bhanot.  c2019. 
 - 1000p. 
<br/><br/> Book. 
<br/><br/><label>ISBN: </label>978-93-82219-15-6 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 31