The research methods knowledge base. 

 - 3rd ed 
 - USA.  Cengage learning.  2008. 
 - ix, 361 p.  ill.  28 cm. 
<br/><br/>Includes indexs 
<br/><br/><label>ISBN: </label>9781592602902 
<br/><br/><label>Subjects--Topical Terms: </label><br/>research methods.
<br/><br/><label>National Library of Medicine Call No.: </label>Q 180.55 TR 2008