Perkins, William Harvey,    1894- <br/><br/>
Cause and prevention of diseases /    
by William Harvey Perkins. 
 - Philadelphia :   Lea & Febiger ,   1938. 
 - 713 p. :    1 ill., diagr. ;    24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pathology--Causes and theories of causation------<br/>Diseases --Causes and theories of causation------
<br/><br/><label>National Library of Medicine Call No.: </label>QZ 40   /  P419c