Hobson, William. <br/><br/>
The theory and practice of public health / 

 - 4th ed. 
 - London ;  New York :  Oxford University Press,  1975. 
 - xvi, 685 p.   ill.  
 - Oxford medical publications .
<br/><br/><label>ISBN: </label>0192642227 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health.
<br/><br/><label>LC Class. No.: </label>MED RA425  / H57