Encyclopedia of research design. / 
edited by Neil J. Salkind. 
 - Los Angeles :  Sage,  2010. 
 - Xi, 1148 p. 
 -  Vol. 1 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781412961271 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods--Encyclopedias.
<br/><br/><label>LC Class. No.: </label>HA29  / .E525