Cavallo, Roger E. <br/><br/>
Role of systems methodology in social science research / 
by Roger E. Cavallo 
 - The Hague :  Martinus Nijhoff Publishing ,  1979 . 
 - v, 202 P. :  ill. ;  28 cm. 
 - Frontoers in systems Research , .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences<br/>Generative systems<br/>Structural derivations
<br/><br/><label>Dewey Class. No.: </label>300.18  / CAV N79R