De Vaus, D. A. <br/><br/>
Research design in social research / 
David A. de Vaus. 
 - London :  SAGE ,  2001. 
 - xvii, 279 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0761953469 0761953477 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences-- Research
<br/><br/><label>Dewey Class. No.: </label>300/.7/2