Stretton, Hugh. <br/><br/>
The political sciences:  general principles of selection in social science and history. 

 - London,  Routledge & K. Paul,  1969. 
<br/><br/>Bibliography: p. 435-439. 
<br/><br/><label>ISBN: </label>0710061773 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences.
<br/><br/><label>LC Class. No.: </label>H 83 STR 1969