Rossman, Gretchen B. <br/><br/>
An Introduction to qualitative research:  learning in the field / 
Gretchen B. Rossman and Sharon F. Rallis. 
 - Fourth edition. 
 - Los Angeles :  Sage Publications,  2017. 
 - xxx, 312 pages ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references.   
<br/><br/><label>ISBN: </label>9781506307930 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology.