Park, J. E. & Park, K. <br/><br/>
Park's textbook of preventive and social medicine .-12th ed .-81-900118-0-4 

 - M/s Banarsidas Bhanot, Jabalpur  1989 
 - 500p 
<br/><br/><label>ISBN: </label>81-900118-0-4 
<br/><br/><label>Dewey Class. No.: </label>614.44 Par/Par