Marshall, Catherine, <br/><br/>
Designing qualitative research / 
Catherine Marshall, Gretchen B. Rossman. 
 - 5th ed. 
 - Los Angeles :  Sage,  c2011. 
 - xxii, 321 p. : 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781412970440 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences
<br/><br/><label>National Library of Medicine Call No.: </label>W 100