Selected papers on the pathogenic rickettsiae / 
 Pathogenic rickettsiae. 
edited by Nicholas Hahon. 
 - Cambridge, Mass. :  Harvard University Press,  1968. 
 - 369 pages :  illustrations ;  25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rickettsial diseases.<br/>Rickettsias.