Detels Roger., <br/><br/>
Oxford Text Book  of public Health  vol - I   Textual Documents 

 - 5th ed. . 
 -  Oxford Uni Press  2009 
 - 392. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Dewey Class. No.: </label>614  / DET