Bryman, Alan <br/><br/>
Social research methods 

 - 4 ed. 
 -  Oxford University Press,  2014 
 - 766p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science research
<br/><br/><label>Dewey Class. No.: </label>300.72  / BRY-S