FORCESE (Dennis P) and RICHER (Stephen). <br/><br/>
Social research methods. 

 - New Jersey.  Prentice-Hall, Inc.,  1973 
 - viii,280 
<br/><br/><label>ISBN: </label>0 13 818237 X 
<br/><br/><label>Dewey Class. No.: </label>300.72 FORS