Smith, H W <br/><br/>
Steategies of social reseach: the methodological imagination 

 - NEW YORK  PRENTICE HALL,INC  1975 
 - XX, 423p p. 
<br/><br/><label>ISBN: </label>0 13 851147 0 
<br/><br/><label>Subjects--Index Terms: </label>PSYCHOLOGY