Galtung, Johan <br/><br/>
Theory and methods of social research 

 - London  George Allen and Unwin Ltd.  1967 
 - 536 p.; 23cm. 
 - Basic social science monographs from the international peace research institute .
<br/><br/><label>ISBN: </label>43000177 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methods<br/>Social research<br/>Social science research