De Vaus D A <br/><br/>
Surveys in social research. 
De Vaus D A 
 - 5 
 -  2002 
<br/><br/><label>Standard No.: </label>76488 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Sigma:f, P2