A guide to historical method / 
Ed. by R. J. Shafer. 
 - Homewood, IL :  Dorsey Press,  1974. 
 - XIV, 255 p. ;  23 cm. 
 - Dorsey series in history .
<br/><br/>Index pp. 243-255 
<br/><br/><label>ISBN: </label>0-256-01 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Theory of history