Black, Thomas R. <br/><br/>
Understanding social science research/ 
Thomas R. Black. 
 - London  Thousand Oaks:  Sage,  2002. 
 - ix, 272 p.:  ill.;  25 cm. 
<br/><br/> Previous ed.: 1993. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0761973699 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Evaluation.