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

 - 4th ed.- 
 - Oxford:  Oxford University Press,  2012 
 - 225p.:  24cm. 
<br/><br/><label>ISBN: </label>9780199588053 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>LC Class. No.: </label>H62.B787