Content analysis :  a handbook with applications for the study of international crisis / 
by Robert C. North ... [et al.] 
 - Evanston :  Northwestern University Press,  1963. 
 - 182 p. : 
<br/><br/><label>ISBN: </label>SSCA5595 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International relations
<br/><br/><label>Dewey Class. No.: </label>327  / Co