Rossman, Gretchen B. <br/><br/>
Learning in the field: An introduction to qualitive research 

 - 3rd 
 - Los Angeles  Sage Publication Ltd  2012 
 - xxvi,366p p. 
<br/><br/><label>ISBN: </label>978-1-4129-8048-7 
<br/><br/><label>Subjects--Index Terms: </label>Social sciences-Research-Methodology;