Gottschalk, Louis. <br/><br/>
Understanding history :  a primer of historical method / 
Louis Gottschalk. 
 - 2nd ed. 
 - New York :  Knopf,  1969. 
 - xix, [316] p. ;  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historiography.