De Vaus, D. A. <br/><br/>
Research design in social research / 

 - London ;  Thousand Oaks, Calif. :  SAGE,  2001. 
 - xvii, 279 p. :  ill. ; 
<br/><br/><label>ISBN: </label>0761953469 0761953477 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences
<br/><br/><label>LC Class. No.: </label>MED H61  / .D3375