Simpson, Howard N. <br/><br/>
Invisible armies :  the impact of disease on American history / 
Howard N. Simpson. 
 - Indianapolis :  Bobbs-Merrill,  c1980. 
 - xi, 239 p. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>067252659X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal diseases--History.--United States<br/>Diseases and history--United States.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History.<br/>United States--History, Military--To 1900.
<br/><br/><label>Dewey Class. No.: </label>571.9  / SII 1980