Smolensky, Jack <br/><br/>
Principles of community health 

 - 4th ed. 
 - Phidelphia  W.B. Saunders  1977 
 - vi, 472 p.  Illustration 
<br/><br/><label>ISBN: </label>0721684289 
<br/><br/><label>Dewey Class. No.: </label>362.1  / S55