PUNCH, Keith F <br/><br/>
Introduction to social research   Quantitative & qualitative approaches  xvi, 386p., ill 
Keith F. Punch 
 -  SAGE  2014 
<br/><br/> “It includes index and references”<br/>	<br/> 
<br/><br/><label>ISBN: </label>978-1-4462-4093-9