Park, J. E. <br/><br/>
Textbook of Preventive and Social Medicine 

 - 11th 
 - India  M/s Banarsidas Bhanot  1987 
 - 620 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Community medicine.--Public health.--Preventive medicine --Epidemiology --IMDC
<br/><br/><label>Dewey Class. No.: </label>614.44  / PAR