Salkind, Neil J <br/><br/>
Encyclopedia of research design 

 - 1st 
 - Thousand Oaks:  Sage Publications,  2010 
 - v. cm. 
<br/><br/><label>ISBN: </label>1412961270 9781412961271 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences - Statistical methods - Encyclopedias<br/>Social sciences - Research - Methodology - Encyclopedias