Parkers, L. C. <br/><br/>
Hygiene and public health 

 - ,aLondon  H. K. Lewis and Co.  1928 
 - p. 783 
<br/><br/><label>Subjects--Index Terms: </label>Medical science;Hygiene;Public health 
<br/><br/><label>Dewey Class. No.: </label>614