Social research ethics  an examination of the merits of covert participant observation 
edited by Martin Bulmer 
 - London  MacMillan  1982 
 - 284 p. ; 22 cm. 
<br/><br/><label>ISBN: </label>0333291999 
<br/><br/><label>LCCN: </label>81-4250 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociological research--United States<br/>Research ethics<br/>Social scientists--Professional ethics<br/>Participant observation<br/>Social sciences--Field work