Cavallo Roger E <br/><br/>
Role of systems methodology in social science research 

 - Boston, USA  Martinus Nijhoff Publishing  1979 
 - ix,202p. 
<br/><br/><label>ISBN: </label>0-89838-005-7 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Science Research