The SAGE Handbook of Social Research Methods/ 
Alasuutari,Pertti [ed.] 
 - 1st.ed. 
 - Los angeles:  SAGE Publications Ltd,  2008. 
 - 631 
<br/><br/><label>ISBN: </label>9780412919920 
<br/><br/><label>Dewey Class. No.: </label>001.42  / ALA/S