Burns Robert B. <br/><br/>
Introduction to research methods 
Burns Robert B. 
 - London  Sage Publication UK        2000 
 - 611p.  cm. 
<br/><br/><label>ISBN: </label>0761965939 
<br/><br/><label>Source: </label> TB 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RESEARCH METHODS